23989328 has 20 divisors (see below), whose sum is σ = 50705088. Its totient is φ = 10904160.

The previous prime is 23989309. The next prime is 23989331. The reversal of 23989328 is 82398932.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67976 + ... + 68327.

Almost surely, 2^23989328 is an apocalyptic number.

It is an amenable number.

23989328 is an abundant number, since it is smaller than the sum of its proper divisors (26715760).

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

23989328 is a wasteful number, since it uses less digits than its factorization.

23989328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136322 (or 136316 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 23989328 is about 4897.8901580170. The cubic root of 23989328 is about 288.4071530355.

The spelling of 23989328 in words is "twenty-three million, nine hundred eighty-nine thousand, three hundred twenty-eight".