57439480 has 32 divisors (see below), whose sum is σ = 147702240. Its totient is φ = 19693440.

The previous prime is 57439471. The next prime is 57439493. The reversal of 57439480 is 8493475.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 102291 + ... + 102850.

It is an arithmetic number, because the mean of its divisors is an integer number (4615695).

Almost surely, 2^57439480 is an apocalyptic number.

It is an amenable number.

57439480 is an abundant number, since it is smaller than the sum of its proper divisors (90262760).

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

57439480 is a wasteful number, since it uses less digits than its factorization.

57439480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205159 (or 205155 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 57439480 is about 7578.8838228330. The cubic root of 57439480 is about 385.8366692450.

The spelling of 57439480 in words is "fifty-seven million, four hundred thirty-nine thousand, four hundred eighty".