Fait général: 23742 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 23742 is an uninteresting number.
Culture générale: 23742 is a boring number.
Date historique: December 31st is the day in 1999 that the United States Government hands control of the Panama Canal (as well all the adjacent land to the canal known as the Panama Canal Zone) to Panama.