23320988 has 24 divisors (see below), whose sum is σ = 44059680. Its totient is φ = 10767680.

The previous prime is 23320987. The next prime is 23321041. The reversal of 23320988 is 88902332.

It is a super-2 number, since 2×23320988² = 1087736962592288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703 + ... + 7038.

It is an arithmetic number, because the mean of its divisors is an integer number (1835820).

Almost surely, 2^23320988 is an apocalyptic number.

It is an amenable number.

23320988 is a deficient number, since it is larger than the sum of its proper divisors (20738692).

23320988 is a wasteful number, since it uses less digits than its factorization.

23320988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797 (or 8795 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 23320988 is about 4829.1808829241. The cubic root of 23320988 is about 285.7035577400.

The spelling of 23320988 in words is "twenty-three million, three hundred twenty thousand, nine hundred eighty-eight".