23645628 has 24 divisors (see below), whose sum is σ = 61303760. Its totient is φ = 7881840.

The previous prime is 23645617. The next prime is 23645669. The reversal of 23645628 is 82654632.

23645628 is a `hidden beast` number, since 2 + 3 + 645 + 6 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23645592 and 23645601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109363 + ... + 109578.

Almost surely, 2^23645628 is an apocalyptic number.

It is an amenable number.

23645628 is an abundant number, since it is smaller than the sum of its proper divisors (37658132).

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

23645628 is a wasteful number, since it uses less digits than its factorization.

23645628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218954 (or 218946 counting only the distinct ones).

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

The square root of 23645628 is about 4862.6770404788. The cubic root of 23645628 is about 287.0231662313.

The spelling of 23645628 in words is "twenty-three million, six hundred forty-five thousand, six hundred twenty-eight".