Fatto generale: 42613 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 42613 is an unremarkable number.
Trivia: 42613 is an unremarkable number.
Data storica: September 1st is the day in 1873 that Cetshwayo ascends to the throne as king of the Zulu nation following the death of his father Mpande.