Fatto generale: 5840 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 5840 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 5840 is an uninteresting number.
Data storica: December 27th is the day in 1845 that Ether anesthetic is used for childbirth for the first time by Dr. Crawford Williamson Long in Jefferson, Georgia.