57233740 has 24 divisors (see below), whose sum is σ = 120636432. Its totient is φ = 22808640.

The previous prime is 57233699. The next prime is 57233749. The reversal of 57233740 is 4733275.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (57233749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (5026518).

Almost surely, 2^57233740 is an apocalyptic number.

It is an amenable number.

57233740 is an abundant number, since it is smaller than the sum of its proper divisors (63402692).

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

57233740 is a wasteful number, since it uses less digits than its factorization.

57233740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10617 (or 10615 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 57233740 is about 7565.2984078620. The cubic root of 57233740 is about 385.3754475455.

The spelling of 57233740 in words is "fifty-seven million, two hundred thirty-three thousand, seven hundred forty".