23819728 has 20 divisors (see below), whose sum is σ = 46317348. Its totient is φ = 11866880.

The previous prime is 23819723. The next prime is 23819777. The reversal of 23819728 is 82791832.

It can be written as a sum of positive squares in 2 ways, for example, as 13630864 + 10188864 = 3692^2 + 3192^2 .

Its product of digits (48384) is a multiple of the sum of its prime divisors (5376).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23819723) 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, 2148 + ... + 7228.

Almost surely, 2^23819728 is an apocalyptic number.

It is an amenable number.

23819728 is a deficient number, since it is larger than the sum of its proper divisors (22497620).

23819728 is a wasteful number, since it uses less digits than its factorization.

23819728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382 (or 5376 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 23819728 is about 4880.5458711091. The cubic root of 23819728 is about 287.7258837283.

The spelling of 23819728 in words is "twenty-three million, eight hundred nineteen thousand, seven hundred twenty-eight".