656322232 has 8 divisors (see below), whose sum is σ = 1230604200. Its totient is φ = 328161112.

The previous prime is 656322209. The next prime is 656322239. The reversal of 656322232 is 232223656.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 656322194 and 656322203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656322239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41020132 + ... + 41020147.

It is an arithmetic number, because the mean of its divisors is an integer number (153825525).

Almost surely, 2^656322232 is an apocalyptic number.

It is an amenable number.

656322232 is a deficient number, since it is larger than the sum of its proper divisors (574281968).

656322232 is a wasteful number, since it uses less digits than its factorization.

656322232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82040285 (or 82040281 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 656322232 is about 25618.7867003884. The cubic root of 656322232 is about 869.0385432718.

Adding to 656322232 its reverse (232223656), we get a palindrome (888545888).

The spelling of 656322232 in words is "six hundred fifty-six million, three hundred twenty-two thousand, two hundred thirty-two".