23328636 has 12 divisors (see below), whose sum is σ = 54433512. Its totient is φ = 7776208.

The previous prime is 23328629. The next prime is 23328653. The reversal of 23328636 is 63682332.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23328597 and 23328606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972015 + ... + 972038.

It is an arithmetic number, because the mean of its divisors is an integer number (4536126).

Almost surely, 2^23328636 is an apocalyptic number.

It is an amenable number.

23328636 is an abundant number, since it is smaller than the sum of its proper divisors (31104876).

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

23328636 is a wasteful number, since it uses less digits than its factorization.

23328636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944060 (or 1944058 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 23328636 is about 4829.9726707301. The cubic root of 23328636 is about 285.7347860052.

The spelling of 23328636 in words is "twenty-three million, three hundred twenty-eight thousand, six hundred thirty-six".