23920656 has 40 divisors (see below), whose sum is σ = 61972224. Its totient is φ = 7950720.

The previous prime is 23920643. The next prime is 23920661. The reversal of 23920656 is 65602932.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28726 + ... + 29546.

Almost surely, 2^23920656 is an apocalyptic number.

It is an amenable number.

23920656 is an abundant number, since it is smaller than the sum of its proper divisors (38051568).

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

23920656 is a wasteful number, since it uses less digits than its factorization.

23920656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 23920656 is about 4890.8747683824. The cubic root of 23920656 is about 288.1316913167.

The spelling of 23920656 in words is "twenty-three million, nine hundred twenty thousand, six hundred fifty-six".