23724328 has 8 divisors (see below), whose sum is σ = 44483130. Its totient is φ = 11862160.

The previous prime is 23724319. The next prime is 23724329. The reversal of 23724328 is 82342732.

It can be written as a sum of positive squares in only one way, i.e., 22638564 + 1085764 = 4758^2 + 1042^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 23724328.

It is not an unprimeable number, because it can be changed into a prime (23724329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1482763 + ... + 1482778.

Almost surely, 2^23724328 is an apocalyptic number.

It is an amenable number.

23724328 is a deficient number, since it is larger than the sum of its proper divisors (20758802).

23724328 is a wasteful number, since it uses less digits than its factorization.

23724328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965547 (or 2965543 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 23724328 is about 4870.7625686334. The cubic root of 23724328 is about 287.3412477057.

The spelling of 23724328 in words is "twenty-three million, seven hundred twenty-four thousand, three hundred twenty-eight".