23392138 has 16 divisors (see below), whose sum is σ = 43746624. Its totient is φ = 9113760.

The previous prime is 23392091. The next prime is 23392141. The reversal of 23392138 is 83129332.

It is a super-2 number, since 2×23392138² = 1094384240422088, which contains 22 as substring.

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, 75795 + ... + 76102.

It is an arithmetic number, because the mean of its divisors is an integer number (2734164).

Almost surely, 2^23392138 is an apocalyptic number.

23392138 is a deficient number, since it is larger than the sum of its proper divisors (20354486).

23392138 is a wasteful number, since it uses less digits than its factorization.

23392138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151917.

The product of its digits is 7776, while the sum is 31.

The square root of 23392138 is about 4836.5419464737. The cubic root of 23392138 is about 285.9938137446.

The spelling of 23392138 in words is "twenty-three million, three hundred ninety-two thousand, one hundred thirty-eight".