23432656 has 20 divisors (see below), whose sum is σ = 48893572. Its totient is φ = 10814976.

The previous prime is 23432639. The next prime is 23432657. The reversal of 23432656 is 65623432.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3182656 + 20250000 = 1784^2 + 4500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23432657) 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, 56121 + ... + 56536.

Almost surely, 2^23432656 is an apocalyptic number.

23432656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23432656 is an abundant number, since it is smaller than the sum of its proper divisors (25460916).

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

23432656 is a wasteful number, since it uses less digits than its factorization.

23432656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112678 (or 112672 counting only the distinct ones).

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

The square root of 23432656 is about 4840.7288707384. The cubic root of 23432656 is about 286.1588437393.

The spelling of 23432656 in words is "twenty-three million, four hundred thirty-two thousand, six hundred fifty-six".