Fait mathématique: 2469 is the smallest value of n for which 4n and 5n together use the digits 1-9 exactly once.
Culture générale: 2469 is an unremarkable number.
Date historique: October 4th is the day in 1997 that the second largest cash robbery in U.S. history occurs at the Charlotte, North Carolina office of Loomis, Fargo and Company.