23989408 has 24 divisors (see below), whose sum is σ = 47429172. Its totient is φ = 11943936.

The previous prime is 23989403. The next prime is 23989439. The reversal of 23989408 is 80498932.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13927824 + 10061584 = 3732^2 + 3172^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23989403) 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, 6766 + ... + 9682.

Almost surely, 2^23989408 is an apocalyptic number.

It is an amenable number.

23989408 is a deficient number, since it is larger than the sum of its proper divisors (23439764).

23989408 is a wasteful number, since it uses less digits than its factorization.

23989408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184 (or 3176 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 23989408 is about 4897.8983247920. The cubic root of 23989408 is about 288.4074736301.

The spelling of 23989408 in words is "twenty-three million, nine hundred eighty-nine thousand, four hundred eight".