23164388 has 24 divisors (see below), whose sum is σ = 45164280. Its totient is φ = 10321920.

The previous prime is 23164333. The next prime is 23164429. The reversal of 23164388 is 88346132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2715904 + 20448484 = 1648^2 + 4522^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6173 + ... + 9188.

It is an arithmetic number, because the mean of its divisors is an integer number (1881845).

Almost surely, 2^23164388 is an apocalyptic number.

It is an amenable number.

23164388 is a deficient number, since it is larger than the sum of its proper divisors (21999892).

23164388 is a wasteful number, since it uses less digits than its factorization.

23164388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15407 (or 15405 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 23164388 is about 4812.9396422561. The cubic root of 23164388 is about 285.0626229476.

The spelling of 23164388 in words is "twenty-three million, one hundred sixty-four thousand, three hundred eighty-eight".