23499472 has 10 divisors (see below), whose sum is σ = 45530258. Its totient is φ = 11749728.

The previous prime is 23499451. The next prime is 23499493. The reversal of 23499472 is 27499432.

It is an interprime number because it is at equal distance from previous prime (23499451) and next prime (23499493).

It can be written as a sum of positive squares in only one way, i.e., 20757136 + 2742336 = 4556^2 + 1656^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 734343 + ... + 734374.

Almost surely, 2^23499472 is an apocalyptic number.

It is an amenable number.

23499472 is a deficient number, since it is larger than the sum of its proper divisors (22030786).

23499472 is a wasteful number, since it uses less digits than its factorization.

23499472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468725 (or 1468719 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 23499472 is about 4847.6253980686. The cubic root of 23499472 is about 286.4305705848.

Subtracting from 23499472 its sum of digits (40), we obtain a palindrome (23499432).

The spelling of 23499472 in words is "twenty-three million, four hundred ninety-nine thousand, four hundred seventy-two".