23928738 has 16 divisors (see below), whose sum is σ = 47905536. Its totient is φ = 7968240.

The previous prime is 23928727. The next prime is 23928761. The reversal of 23928738 is 83782932.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23928738.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10095 + ... + 12237.

It is an arithmetic number, because the mean of its divisors is an integer number (2994096).

Almost surely, 2^23928738 is an apocalyptic number.

23928738 is an abundant number, since it is smaller than the sum of its proper divisors (23976798).

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

23928738 is a wasteful number, since it uses less digits than its factorization.

23928738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009.

The product of its digits is 145152, while the sum is 42.

The square root of 23928738 is about 4891.7009311690. The cubic root of 23928738 is about 288.1641377250.

The spelling of 23928738 in words is "twenty-three million, nine hundred twenty-eight thousand, seven hundred thirty-eight".