57476240 has 20 divisors (see below), whose sum is σ = 133632444. Its totient is φ = 22990464.

The previous prime is 57476203. The next prime is 57476249. The reversal of 57476240 is 4267475.

It can be written as a sum of positive squares in 2 ways, for example, as 24482704 + 32993536 = 4948^2 + 5744^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57476240.

It is not an unprimeable number, because it can be changed into a prime (57476249) 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, 359147 + ... + 359306.

Almost surely, 2^57476240 is an apocalyptic number.

It is an amenable number.

57476240 is an abundant number, since it is smaller than the sum of its proper divisors (76156204).

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

57476240 is a wasteful number, since it uses less digits than its factorization.

57476240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718466 (or 718460 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 57476240 is about 7581.3085941676. The cubic root of 57476240 is about 385.9189606780.

The spelling of 57476240 in words is "fifty-seven million, four hundred seventy-six thousand, two hundred forty".