23438870 has 64 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 7233408.

The previous prime is 23438843. The next prime is 23438887. The reversal of 23438870 is 7883432.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23438870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38831 + ... + 39429.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^23438870 is an apocalyptic number.

23438870 is an abundant number, since it is smaller than the sum of its proper divisors (29783530).

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

23438870 is a wasteful number, since it uses less digits than its factorization.

23438870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 23438870 is about 4841.3706736832. The cubic root of 23438870 is about 286.1841365600.

The spelling of 23438870 in words is "twenty-three million, four hundred thirty-eight thousand, eight hundred seventy".