23320972 has 12 divisors (see below), whose sum is σ = 40882576. Its totient is φ = 11640240.

The previous prime is 23320963. The next prime is 23320987. The reversal of 23320972 is 27902332.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23320972.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304 + ... + 7207.

Almost surely, 2^23320972 is an apocalyptic number.

It is an amenable number.

23320972 is a deficient number, since it is larger than the sum of its proper divisors (17561604).

23320972 is a wasteful number, since it uses less digits than its factorization.

23320972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128 (or 10126 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 23320972 is about 4829.1792263282. The cubic root of 23320972 is about 285.7034924018.

The spelling of 23320972 in words is "twenty-three million, three hundred twenty thousand, nine hundred seventy-two".