23640716 has 18 divisors (see below), whose sum is σ = 45193932. Its totient is φ = 10731120.

The previous prime is 23640691. The next prime is 23640737. The reversal of 23640716 is 61704632.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31886 + ... + 32618.

It is an arithmetic number, because the mean of its divisors is an integer number (2510774).

Almost surely, 2^23640716 is an apocalyptic number.

It is an amenable number.

23640716 is a deficient number, since it is larger than the sum of its proper divisors (21553216).

23640716 is an equidigital number, since it uses as much as digits as its factorization.

23640716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 23640716 is about 4862.1719426610. The cubic root of 23640716 is about 287.0032900350.

The spelling of 23640716 in words is "twenty-three million, six hundred forty thousand, seven hundred sixteen".