57378864 has 40 divisors (see below), whose sum is σ = 148998400. Its totient is φ = 19027008.

The previous prime is 57378833. The next prime is 57378877. The reversal of 57378864 is 46887375.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6549 + ... + 12555.

It is an arithmetic number, because the mean of its divisors is an integer number (3724960).

Almost surely, 2^57378864 is an apocalyptic number.

It is an amenable number.

57378864 is an abundant number, since it is smaller than the sum of its proper divisors (91619536).

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

57378864 is a wasteful number, since it uses less digits than its factorization.

57378864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217 (or 6211 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 57378864 is about 7574.8837614844. The cubic root of 57378864 is about 385.7008967330.

The spelling of 57378864 in words is "fifty-seven million, three hundred seventy-eight thousand, eight hundred sixty-four".