23638916 has 12 divisors (see below), whose sum is σ = 47277888. Its totient is φ = 10130952.

The previous prime is 23638883. The next prime is 23638921. The reversal of 23638916 is 61983632.

23638916 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23638916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422096 + ... + 422151.

It is an arithmetic number, because the mean of its divisors is an integer number (3939824).

Almost surely, 2^23638916 is an apocalyptic number.

It is an amenable number.

23638916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23638916 is a wasteful number, since it uses less digits than its factorization.

23638916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844258 (or 844256 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 23638916 is about 4861.9868366749. The cubic root of 23638916 is about 286.9960057233.

The spelling of 23638916 in words is "twenty-three million, six hundred thirty-eight thousand, nine hundred sixteen".