57386490 has 32 divisors (see below), whose sum is σ = 157403520. Its totient is φ = 13116864.

The previous prime is 57386489. The next prime is 57386501. The reversal of 57386490 is 9468375.

It is a happy number.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 136425 + ... + 136844.

It is an arithmetic number, because the mean of its divisors is an integer number (4918860).

Almost surely, 2^57386490 is an apocalyptic number.

57386490 is an abundant number, since it is smaller than the sum of its proper divisors (100017030).

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

57386490 is a wasteful number, since it uses less digits than its factorization.

57386490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273286.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 57386490 is about 7575.3871188211. The cubic root of 57386490 is about 385.7179833077.

The spelling of 57386490 in words is "fifty-seven million, three hundred eighty-six thousand, four hundred ninety".