23628645 has 32 divisors (see below), whose sum is σ = 42282240. Its totient is φ = 12519360.

The previous prime is 23628641. The next prime is 23628653. The reversal of 23628645 is 54682632.

23628645 is a `hidden beast` number, since 2 + 3 + 6 + 2 + 8 + 645 = 666.

It is not a de Polignac number, because 23628645 - 2² = 23628641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23628641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23952 + ... + 24918.

It is an arithmetic number, because the mean of its divisors is an integer number (1321320).

Almost surely, 2^23628645 is an apocalyptic number.

It is an amenable number.

23628645 is a deficient number, since it is larger than the sum of its proper divisors (18653595).

23628645 is a wasteful number, since it uses less digits than its factorization.

23628645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 1156 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 23628645 is about 4860.9304664848. The cubic root of 23628645 is about 286.9544335547.

The spelling of 23628645 in words is "twenty-three million, six hundred twenty-eight thousand, six hundred forty-five".