23928156 has 96 divisors (see below), whose sum is σ = 73256960. Its totient is φ = 6609600.

The previous prime is 23928137. The next prime is 23928173. The reversal of 23928156 is 65182932.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23928156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22926 + ... + 23946.

Almost surely, 2^23928156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23928156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36628480).

23928156 is an abundant number, since it is smaller than the sum of its proper divisors (49328804).

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

23928156 is a wasteful number, since it uses less digits than its factorization.

23928156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1064 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 23928156 is about 4891.6414422973. The cubic root of 23928156 is about 288.1618014423.

The spelling of 23928156 in words is "twenty-three million, nine hundred twenty-eight thousand, one hundred fifty-six".