23638234 has 16 divisors (see below), whose sum is σ = 36152928. Its totient is φ = 11589552.

The previous prime is 23638231. The next prime is 23638247. The reversal of 23638234 is 43283632.

It is a super-2 number, since 2×23638234² = 1117532213277512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23638196 and 23638205.

It is not an unprimeable number, because it can be changed into a prime (23638231) 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, 25609 + ... + 26515.

It is an arithmetic number, because the mean of its divisors is an integer number (2259558).

Almost surely, 2^23638234 is an apocalyptic number.

23638234 is a deficient number, since it is larger than the sum of its proper divisors (12514694).

23638234 is a wasteful number, since it uses less digits than its factorization.

23638234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149.

The product of its digits is 20736, while the sum is 31.

The square root of 23638234 is about 4861.9167002325. The cubic root of 23638234 is about 286.9932456819.

The spelling of 23638234 in words is "twenty-three million, six hundred thirty-eight thousand, two hundred thirty-four".