23315388 has 24 divisors (see below), whose sum is σ = 55730640. Its totient is φ = 7582080.

The previous prime is 23315387. The next prime is 23315459. The reversal of 23315388 is 88351332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23315387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23203 + ... + 24186.

It is an arithmetic number, because the mean of its divisors is an integer number (2322110).

Almost surely, 2^23315388 is an apocalyptic number.

It is an amenable number.

23315388 is an abundant number, since it is smaller than the sum of its proper divisors (32415252).

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

23315388 is a wasteful number, since it uses less digits than its factorization.

23315388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47437 (or 47435 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 23315388 is about 4828.6010396387. The cubic root of 23315388 is about 285.6806875254.

The spelling of 23315388 in words is "twenty-three million, three hundred fifteen thousand, three hundred eighty-eight".