The qualities of this number are quite strong in the sun sign of Aquarius.
The number is in opposition with the zodiac of Leo, but both the traits can be balanced out.
With other air signs (Gemini, Libra)and fire signs (Aries, Sagittarius), the characteristics gel well together.
Vibes of number four are in opposition with the Earthy Sun signs of Taurusand Virgo, and water sign of Scorpio, Cancer and Pisces. Hence it gives varied and unexpected results over here.
Rahu resembles Saturn or Shani. Shani is the ruling planet of Capricorn as well. Hence number four usually works well with Capricorn also, although mostly it is in sharp contrast. It only instills more efficiency in the sun sign. This number is a bit difficult to analyse. The person governed by this number is a 'worker'. He /she never shies away from laboring his way through to build something. Number four people love freedom of expression and thinking. Still they have an uncanny sense of responsibility and stability. They are very good and committed organizers and workers.
Sometimes, number four people are highly individualistic and love to shock people with their unconventional ideas. Such people make their own norms, which at times can be contradictory to that of society. (Although this is not exactly the general case.) Number four can generally be very good at making friends. They are extremely understanding and loyal to the loved ones. This can often be very disadvantageous to their own psyche, as they tend to take the mental burdens of others to themselves. Number four works their way to achievement and destiny in life. And in their own way they help others and humanity in general to realise their potential.