23426656 has 24 divisors (see below), whose sum is σ = 50314824. Its totient is φ = 10648320.

The previous prime is 23426653. The next prime is 23426699. The reversal of 23426656 is 65662432.

It is a super-2 number, since 2×23426656² = 1097616422684672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23426651) 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, 32925 + ... + 33628.

It is an arithmetic number, because the mean of its divisors is an integer number (2096451).

Almost surely, 2^23426656 is an apocalyptic number.

It is an amenable number.

23426656 is an abundant number, since it is smaller than the sum of its proper divisors (26888168).

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

23426656 is a wasteful number, since it uses less digits than its factorization.

23426656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66574 (or 66566 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 23426656 is about 4840.1090896797. The cubic root of 23426656 is about 286.1344177186.

It can be divided in two parts, 2342 and 6656, that added together give a palindrome (8998).

The spelling of 23426656 in words is "twenty-three million, four hundred twenty-six thousand, six hundred fifty-six".