656632232 has 16 divisors (see below), whose sum is σ = 1240174260. Its totient is φ = 325919104.

The previous prime is 656632201. The next prime is 656632237. The reversal of 656632232 is 232236656.

It can be written as a sum of positive squares in 2 ways, for example, as 647906116 + 8726116 = 25454^2 + 2954^2 .

It is a junction number, because it is equal to n+sod(n) for n = 656632192 and 656632201.

It is not an unprimeable number, because it can be changed into a prime (656632237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298463 + ... + 300654.

Almost surely, 2^656632232 is an apocalyptic number.

It is an amenable number.

656632232 is a deficient number, since it is larger than the sum of its proper divisors (583542028).

656632232 is a wasteful number, since it uses less digits than its factorization.

656632232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599260 (or 599256 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

The square root of 656632232 is about 25624.8362336230. The cubic root of 656632232 is about 869.1753457605.

Adding to 656632232 its reverse (232236656), we get a palindrome (888868888).

The spelling of 656632232 in words is "six hundred fifty-six million, six hundred thirty-two thousand, two hundred thirty-two".