657272032 has 12 divisors (see below), whose sum is σ = 1294004376. Its totient is φ = 328636000.

The previous prime is 657272029. The next prime is 657272039. The reversal of 657272032 is 230272756.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657272039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10269844 + ... + 10269907.

It is an arithmetic number, because the mean of its divisors is an integer number (107833698).

Almost surely, 2^657272032 is an apocalyptic number.

It is an amenable number.

657272032 is a deficient number, since it is larger than the sum of its proper divisors (636732344).

657272032 is a wasteful number, since it uses less digits than its factorization.

657272032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20539761 (or 20539753 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 657272032 is about 25637.3171763350. The cubic root of 657272032 is about 869.4575523709.

The spelling of 657272032 in words is "six hundred fifty-seven million, two hundred seventy-two thousand, thirty-two".