23403864 has 32 divisors (see below), whose sum is σ = 63829440. Its totient is φ = 7092000.

The previous prime is 23403851. The next prime is 23403929. The reversal of 23403864 is 46830432.

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, 44062 + ... + 44589.

It is an arithmetic number, because the mean of its divisors is an integer number (1994670).

Almost surely, 2^23403864 is an apocalyptic number.

23403864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23403864 is an abundant number, since it is smaller than the sum of its proper divisors (40425576).

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

23403864 is a wasteful number, since it uses less digits than its factorization.

23403864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88671 (or 88667 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 23403864 is about 4837.7540243382. The cubic root of 23403864 is about 286.0415933769.

The spelling of 23403864 in words is "twenty-three million, four hundred three thousand, eight hundred sixty-four".