23638172 has 12 divisors (see below), whose sum is σ = 41949936. Its totient is φ = 11652480.

The previous prime is 23638169. The next prime is 23638183. The reversal of 23638172 is 27183632.

It is a happy number.

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, 41333 + ... + 41900.

It is an arithmetic number, because the mean of its divisors is an integer number (3495828).

Almost surely, 2^23638172 is an apocalyptic number.

It is an amenable number.

23638172 is a deficient number, since it is larger than the sum of its proper divisors (18311764).

23638172 is a wasteful number, since it uses less digits than its factorization.

23638172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83308 (or 83306 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 23638172 is about 4861.9103241421. The cubic root of 23638172 is about 286.9929947664.

The spelling of 23638172 in words is "twenty-three million, six hundred thirty-eight thousand, one hundred seventy-two".