57912290 has 8 divisors (see below), whose sum is σ = 104242140. Its totient is φ = 23164912.

The previous prime is 57912263. The next prime is 57912299. The reversal of 57912290 is 9221975.

It can be written as a sum of positive squares in 2 ways, for example, as 49014001 + 8898289 = 7001^2 + 2983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57912290.

It is not an unprimeable number, because it can be changed into a prime (57912299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2895605 + ... + 2895624.

Almost surely, 2^57912290 is an apocalyptic number.

57912290 is a deficient number, since it is larger than the sum of its proper divisors (46329850).

57912290 is a wasteful number, since it uses less digits than its factorization.

57912290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791236.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 57912290 is about 7610.0124835640. The cubic root of 57912290 is about 386.8924422945.

The spelling of 57912290 in words is "fifty-seven million, nine hundred twelve thousand, two hundred ninety".