23640576 has 40 divisors (see below), whose sum is σ = 62984064. Its totient is φ = 7879680.

The previous prime is 23640571. The next prime is 23640581. The reversal of 23640576 is 67504632.

It is an interprime number because it is at equal distance from previous prime (23640571) and next prime (23640581).

It is a super-2 number, since 2×23640576² = 1117753667223552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23640571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6160 + ... + 9231.

Almost surely, 2^23640576 is an apocalyptic number.

It is an amenable number.

23640576 is an abundant number, since it is smaller than the sum of its proper divisors (39343488).

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

23640576 is an equidigital number, since it uses as much as digits as its factorization.

23640576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15412 (or 15396 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 23640576 is about 4862.1575457815. The cubic root of 23640576 is about 287.0027234907.

The spelling of 23640576 in words is "twenty-three million, six hundred forty thousand, five hundred seventy-six".