42780580 has 24 divisors (see below), whose sum is σ = 90014400. Its totient is φ = 17078880.

The previous prime is 42780541. The next prime is 42780601. The reversal of 42780580 is 8508724.

It is a super-3 number, since 3×42780580³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10195 + ... + 13765.

It is an arithmetic number, because the mean of its divisors is an integer number (3750600).

Almost surely, 2^42780580 is an apocalyptic number.

It is an amenable number.

42780580 is an abundant number, since it is smaller than the sum of its proper divisors (47233820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42780580 is a wasteful number, since it uses less digits than its factorization.

42780580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 42780580 is about 6540.6865083109. The cubic root of 42780580 is about 349.7428859973.

It can be divided in two parts, 427 and 80580, that multiplied together give a triangular number (34407660 = T₈₂₉₅).

The spelling of 42780580 in words is "forty-two million, seven hundred eighty thousand, five hundred eighty".