57440346 has 32 divisors (see below), whose sum is σ = 118153728. Its totient is φ = 18606000.

The previous prime is 57440323. The next prime is 57440351. The reversal of 57440346 is 64304475.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64315 + ... + 65201.

It is an arithmetic number, because the mean of its divisors is an integer number (3692304).

Almost surely, 2^57440346 is an apocalyptic number.

57440346 is an abundant number, since it is smaller than the sum of its proper divisors (60713382).

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

57440346 is a wasteful number, since it uses less digits than its factorization.

57440346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 57440346 is about 7578.9409550411. The cubic root of 57440346 is about 385.8386082880.

The spelling of 57440346 in words is "fifty-seven million, four hundred forty thousand, three hundred forty-six".