57574640 has 20 divisors (see below), whose sum is σ = 133861224. Its totient is φ = 23029824.

The previous prime is 57574637. The next prime is 57574651. The reversal of 57574640 is 4647575.

57574640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×57574640² = 6629678342259200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57574594 and 57574603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359762 + ... + 359921.

Almost surely, 2^57574640 is an apocalyptic number.

It is an amenable number.

57574640 is an abundant number, since it is smaller than the sum of its proper divisors (76286584).

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

57574640 is a wasteful number, since it uses less digits than its factorization.

57574640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719696 (or 719690 counting only the distinct ones).

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

The square root of 57574640 is about 7587.7954637694. The cubic root of 57574640 is about 386.1390677195.

The spelling of 57574640 in words is "fifty-seven million, five hundred seventy-four thousand, six hundred forty".