57291244 has 24 divisors (see below), whose sum is σ = 103305888. Its totient is φ = 27780480.

The previous prime is 57291233. The next prime is 57291253. The reversal of 57291244 is 44219275.

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

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, 76737 + ... + 77479.

It is an arithmetic number, because the mean of its divisors is an integer number (4304412).

Almost surely, 2^57291244 is an apocalyptic number.

It is an amenable number.

57291244 is a deficient number, since it is larger than the sum of its proper divisors (46014644).

57291244 is a wasteful number, since it uses less digits than its factorization.

57291244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1303 counting only the distinct ones).

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

The square root of 57291244 is about 7569.0979647511. The cubic root of 57291244 is about 385.5044694133.

The spelling of 57291244 in words is "fifty-seven million, two hundred ninety-one thousand, two hundred forty-four".