Fatto generale: 4002 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4002 is a boring number.
Trivia: 4002 is a boring number.
Data storica: December 15th is the day in 533 that Byzantine general Belisarius defeats the Vandals, commanded by King Gelimer, at the Battle of Ticameron.