57392790 has 64 divisors (see below), whose sum is σ = 169537536. Its totient is φ = 12108672.

The previous prime is 57392761. The next prime is 57392791. The reversal of 57392790 is 9729375.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57392791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7782 + ... + 13241.

It is an arithmetic number, because the mean of its divisors is an integer number (2649024).

Almost surely, 2^57392790 is an apocalyptic number.

57392790 is an abundant number, since it is smaller than the sum of its proper divisors (112144746).

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

57392790 is a wasteful number, since it uses less digits than its factorization.

57392790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21053.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 57392790 is about 7575.8029277430. The cubic root of 57392790 is about 385.7320977469.

The spelling of 57392790 in words is "fifty-seven million, three hundred ninety-two thousand, seven hundred ninety".