57456442 has 16 divisors (see below), whose sum is σ = 88646400. Its totient is φ = 27918880.

The previous prime is 57456439. The next prime is 57456473. The reversal of 57456442 is 24465475.

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, 7767 + ... + 13237.

It is an arithmetic number, because the mean of its divisors is an integer number (5540400).

Almost surely, 2^57456442 is an apocalyptic number.

57456442 is a deficient number, since it is larger than the sum of its proper divisors (31189958).

57456442 is a wasteful number, since it uses less digits than its factorization.

57456442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621.

The product of its digits is 134400, while the sum is 37.

The square root of 57456442 is about 7580.0027704480. The cubic root of 57456442 is about 385.8746449688.

The spelling of 57456442 in words is "fifty-seven million, four hundred fifty-six thousand, four hundred forty-two".