42 is the answer to the Ultimate Question of life, the universe, and everything in our founder’s favorite book series, Douglas Adams’ Hitchhiker’s Guide to the Galaxy.
It is also:
The angle rounded to whole degrees (the critical angle) for light to be refracted for you to see a rainbow.
Represented by an asterisk in ASCII code, i.e. a wildcard, or anything or everything.
Jackie Robinson’s jersey number, as of 2013 the only jersey number retired by every major league baseball team, and the number worn by every player, coach, and umpire on Jackie Robinson Day.