23398656 has 36 divisors (see below), whose sum is σ = 62276592. Its totient is φ = 7799296.

The previous prime is 23398651. The next prime is 23398657. The reversal of 23398656 is 65689332.

It is not an unprimeable number, because it can be changed into a prime (23398651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14466 + ... + 16001.

Almost surely, 2^23398656 is an apocalyptic number.

It is an amenable number.

23398656 is an abundant number, since it is smaller than the sum of its proper divisors (38877936).

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

23398656 is an equidigital number, since it uses as much as digits as its factorization.

23398656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30486 (or 30472 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 23398656 is about 4837.2157280816. The cubic root of 23398656 is about 286.0203744430.

It can be divided in two parts, 233 and 98656, that added together give a palindrome (98889).

The spelling of 23398656 in words is "twenty-three million, three hundred ninety-eight thousand, six hundred fifty-six".