23724972 has 36 divisors (see below), whose sum is σ = 60387600. Its totient is φ = 7853472.

The previous prime is 23724971. The next prime is 23724991. The reversal of 23724972 is 27942732.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23724971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3153 + ... + 7575.

Almost surely, 2^23724972 is an apocalyptic number.

It is an amenable number.

23724972 is an abundant number, since it is smaller than the sum of its proper divisors (36662628).

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

23724972 is a wasteful number, since it uses less digits than its factorization.

23724972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582 (or 4577 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 23724972 is about 4870.8286769296. The cubic root of 23724972 is about 287.3438476542.

The spelling of 23724972 in words is "twenty-three million, seven hundred twenty-four thousand, nine hundred seventy-two".