57427790 has 32 divisors (see below), whose sum is σ = 120890880. Its totient is φ = 19230624.

The previous prime is 57427787. The next prime is 57427807. The reversal of 57427790 is 9772475.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6530 + ... + 12549.

It is an arithmetic number, because the mean of its divisors is an integer number (3777840).

Almost surely, 2^57427790 is an apocalyptic number.

57427790 is an abundant number, since it is smaller than the sum of its proper divisors (63463090).

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

57427790 is a wasteful number, since it uses less digits than its factorization.

57427790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19136.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 57427790 is about 7578.1125618455. The cubic root of 57427790 is about 385.8104924952.

The spelling of 57427790 in words is "fifty-seven million, four hundred twenty-seven thousand, seven hundred ninety".