23992812 has 18 divisors (see below), whose sum is σ = 60648588. Its totient is φ = 7997592.

The previous prime is 23992811. The next prime is 23992823. The reversal of 23992812 is 21829932.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 666467 = 23992812 / (2 + 3 + 9 + 9 + 2 + 8 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (23992811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333198 + ... + 333269.

It is an arithmetic number, because the mean of its divisors is an integer number (3369366).

Almost surely, 2^23992812 is an apocalyptic number.

It is an amenable number.

23992812 is an abundant number, since it is smaller than the sum of its proper divisors (36655776).

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

23992812 is a wasteful number, since it uses less digits than its factorization.

23992812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666477 (or 666472 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 23992812 is about 4898.2458084502. The cubic root of 23992812 is about 288.4211142697.

The spelling of 23992812 in words is "twenty-three million, nine hundred ninety-two thousand, eight hundred twelve".