23190438 has 16 divisors (see below), whose sum is σ = 46460736. Its totient is φ = 7716840.

The previous prime is 23190413. The next prime is 23190443. The reversal of 23190438 is 83409132.

It is a congruent number.

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, 853 + ... + 6863.

It is an arithmetic number, because the mean of its divisors is an integer number (2903796).

Almost surely, 2^23190438 is an apocalyptic number.

23190438 is an abundant number, since it is smaller than the sum of its proper divisors (23270298).

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

23190438 is a wasteful number, since it uses less digits than its factorization.

23190438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 23190438 is about 4815.6451281215. The cubic root of 23190438 is about 285.1694406401.

The spelling of 23190438 in words is "twenty-three million, one hundred ninety thousand, four hundred thirty-eight".