57349986 has 32 divisors (see below), whose sum is σ = 116520768. Its totient is φ = 18816000.

The previous prime is 57349979. The next prime is 57349991. The reversal of 57349986 is 68994375.

It is a Curzon 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, 170010 + ... + 170346.

It is an arithmetic number, because the mean of its divisors is an integer number (3641274).

Almost surely, 2^57349986 is an apocalyptic number.

57349986 is an abundant number, since it is smaller than the sum of its proper divisors (59170782).

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

57349986 is a wasteful number, since it uses less digits than its factorization.

57349986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706.

The product of its digits is 1632960, while the sum is 51.

The square root of 57349986 is about 7572.9773537229. The cubic root of 57349986 is about 385.6361798737.

The spelling of 57349986 in words is "fifty-seven million, three hundred forty-nine thousand, nine hundred eighty-six".