57405764 has 48 divisors (see below), whose sum is σ = 115248000. Its totient is φ = 24800256.

The previous prime is 57405739. The next prime is 57405767. The reversal of 57405764 is 46750475.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (57405767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95537 + ... + 96135.

It is an arithmetic number, because the mean of its divisors is an integer number (2401000).

Almost surely, 2^57405764 is an apocalyptic number.

It is an amenable number.

57405764 is an abundant number, since it is smaller than the sum of its proper divisors (57842236).

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

57405764 is a wasteful number, since it uses less digits than its factorization.

57405764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 57405764 is about 7576.6591582306. The cubic root of 57405764 is about 385.7611612767.

The spelling of 57405764 in words is "fifty-seven million, four hundred five thousand, seven hundred sixty-four".