23890512 has 20 divisors (see below), whose sum is σ = 61717280. Its totient is φ = 7963488.

The previous prime is 23890507. The next prime is 23890513. The reversal of 23890512 is 21509832.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23890512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23890513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248812 + ... + 248907.

It is an arithmetic number, because the mean of its divisors is an integer number (3085864).

Almost surely, 2^23890512 is an apocalyptic number.

It is an amenable number.

23890512 is an abundant number, since it is smaller than the sum of its proper divisors (37826768).

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

23890512 is a wasteful number, since it uses less digits than its factorization.

23890512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497730 (or 497724 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 23890512 is about 4887.7921396066. The cubic root of 23890512 is about 288.0106091771.

The spelling of 23890512 in words is "twenty-three million, eight hundred ninety thousand, five hundred twelve".