Hecho general: 24321 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 24321 is an uninteresting number.
Trivia: 24321 is an unremarkable number.
Fecha histórica: August 2nd is the day in 1610 that Henry Hudson sails into what is now known as Hudson Bay thinking he had made it through the Northwest Passage and reached the Pacific Ocean.