57921424 has 40 divisors (see below), whose sum is σ = 128875680. Its totient is φ = 24940800.

The previous prime is 57921407. The next prime is 57921463. The reversal of 57921424 is 42412975.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57921424.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5317 + ... + 12004.

It is an arithmetic number, because the mean of its divisors is an integer number (3221892).

Almost surely, 2^57921424 is an apocalyptic number.

It is an amenable number.

57921424 is an abundant number, since it is smaller than the sum of its proper divisors (70954256).

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

57921424 is a wasteful number, since it uses less digits than its factorization.

57921424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17359 (or 17353 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 57921424 is about 7610.6125903241. The cubic root of 57921424 is about 386.9127816145.

The spelling of 57921424 in words is "fifty-seven million, nine hundred twenty-one thousand, four hundred twenty-four".