57440534 has 16 divisors (see below), whose sum is σ = 91108800. Its totient is φ = 27084744.

The previous prime is 57440527. The next prime is 57440557. The reversal of 57440534 is 43504475.

It is a self number, because there is not a number n which added to its sum of digits gives 57440534.

It is a congruent number.

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, 5297 + ... + 11955.

It is an arithmetic number, because the mean of its divisors is an integer number (5694300).

Almost surely, 2^57440534 is an apocalyptic number.

57440534 is a deficient number, since it is larger than the sum of its proper divisors (33668266).

57440534 is a wasteful number, since it uses less digits than its factorization.

57440534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 57440534 is about 7578.9533578193. The cubic root of 57440534 is about 385.8390292324.

The spelling of 57440534 in words is "fifty-seven million, four hundred forty thousand, five hundred thirty-four".