23415885 has 80 divisors (see below), whose sum is σ = 47044800. Its totient is φ = 11073024.

The previous prime is 23415869. The next prime is 23415893. The reversal of 23415885 is 58851432.

It is a happy number.

It is not a de Polignac number, because 23415885 - 2⁴ = 23415869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 130726 + ... + 130904.

It is an arithmetic number, because the mean of its divisors is an integer number (588060).

Almost surely, 2^23415885 is an apocalyptic number.

It is an amenable number.

23415885 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

23415885 is a wasteful number, since it uses less digits than its factorization.

23415885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 223 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 23415885 is about 4838.9962802218. The cubic root of 23415885 is about 286.0905584745.

Adding to 23415885 its sum of digits (36), we get a square (23415921 = 4839²).

The spelling of 23415885 in words is "twenty-three million, four hundred fifteen thousand, eight hundred eighty-five".