57421744 has 10 divisors (see below), whose sum is σ = 111254660. Its totient is φ = 28710864.

The previous prime is 57421729. The next prime is 57421753. The reversal of 57421744 is 44712475.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1794414 + ... + 1794445.

It is an arithmetic number, because the mean of its divisors is an integer number (11125466).

Almost surely, 2^57421744 is an apocalyptic number.

It is an amenable number.

57421744 is a deficient number, since it is larger than the sum of its proper divisors (53832916).

57421744 is a wasteful number, since it uses less digits than its factorization.

57421744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588867 (or 3588861 counting only the distinct ones).

The product of its digits is 31360, while the sum is 34.

The square root of 57421744 is about 7577.7136393506. The cubic root of 57421744 is about 385.7969526387.

The spelling of 57421744 in words is "fifty-seven million, four hundred twenty-one thousand, seven hundred forty-four".