57439436 has 6 divisors (see below), whose sum is σ = 100519020. Its totient is φ = 28719716.

The previous prime is 57439411. The next prime is 57439457. The reversal of 57439436 is 63493475.

It is a junction number, because it is equal to n+sod(n) for n = 57439393 and 57439402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7179926 + ... + 7179933.

It is an arithmetic number, because the mean of its divisors is an integer number (16753170).

Almost surely, 2^57439436 is an apocalyptic number.

It is an amenable number.

57439436 is a deficient number, since it is larger than the sum of its proper divisors (43079584).

57439436 is a wasteful number, since it uses less digits than its factorization.

57439436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14359863 (or 14359861 counting only the distinct ones).

The product of its digits is 272160, while the sum is 41.

The square root of 57439436 is about 7578.8809200303. The cubic root of 57439436 is about 385.8365707249.

It can be divided in two parts, 57439 and 436, that added together give a palindrome (57875).

The spelling of 57439436 in words is "fifty-seven million, four hundred thirty-nine thousand, four hundred thirty-six".