23728388 has 6 divisors (see below), whose sum is σ = 41524686. Its totient is φ = 11864192.

The previous prime is 23728363. The next prime is 23728391. The reversal of 23728388 is 88382732.

It can be written as a sum of positive squares in only one way, i.e., 23116864 + 611524 = 4808^2 + 782^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2966045 + ... + 2966052.

It is an arithmetic number, because the mean of its divisors is an integer number (6920781).

Almost surely, 2^23728388 is an apocalyptic number.

It is an amenable number.

23728388 is a deficient number, since it is larger than the sum of its proper divisors (17796298).

23728388 is a wasteful number, since it uses less digits than its factorization.

23728388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932101 (or 5932099 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 23728388 is about 4871.1793233261. The cubic root of 23728388 is about 287.3576378984.

The spelling of 23728388 in words is "twenty-three million, seven hundred twenty-eight thousand, three hundred eighty-eight".