57231394 has 24 divisors (see below), whose sum is σ = 96805584. Its totient is φ = 25165800.

The previous prime is 57231379. The next prime is 57231403. The reversal of 57231394 is 49313275.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19789 + ... + 22495.

It is an arithmetic number, because the mean of its divisors is an integer number (4033566).

Almost surely, 2^57231394 is an apocalyptic number.

57231394 is a deficient number, since it is larger than the sum of its proper divisors (39574190).

57231394 is a wasteful number, since it uses less digits than its factorization.

57231394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782 (or 2751 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 57231394 is about 7565.1433562095. The cubic root of 57231394 is about 385.3701819850.

It can be divided in two parts, 5723 and 1394, that added together give a palindrome (7117).

The spelling of 57231394 in words is "fifty-seven million, two hundred thirty-one thousand, three hundred ninety-four".