23179872 has 48 divisors (see below), whose sum is σ = 61553520. Its totient is φ = 7636992.

The previous prime is 23179853. The next prime is 23179873. The reversal of 23179872 is 27897132.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 23179872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23179873) 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, 7188 + ... + 9900.

It is an arithmetic number, because the mean of its divisors is an integer number (1282365).

Almost surely, 2^23179872 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 23179872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30776760).

23179872 is an abundant number, since it is smaller than the sum of its proper divisors (38373648).

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

23179872 is a wasteful number, since it uses less digits than its factorization.

23179872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815 (or 2807 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 23179872 is about 4814.5479538582. The cubic root of 23179872 is about 285.1261245395.

The spelling of 23179872 in words is "twenty-three million, one hundred seventy-nine thousand, eight hundred seventy-two".