23239828 has 12 divisors (see below), whose sum is σ = 40943700. Its totient is φ = 11541632.

The previous prime is 23239819. The next prime is 23239837. The reversal of 23239828 is 82893232.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23239819) and next prime (23239837).

It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 18905104 = 2082^2 + 4348^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 18901 + ... + 20092.

It is an arithmetic number, because the mean of its divisors is an integer number (3411975).

Almost surely, 2^23239828 is an apocalyptic number.

It is an amenable number.

23239828 is a deficient number, since it is larger than the sum of its proper divisors (17703872).

23239828 is a wasteful number, since it uses less digits than its factorization.

23239828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39146 (or 39144 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 23239828 is about 4820.7704778386. The cubic root of 23239828 is about 285.3717443025.

The spelling of 23239828 in words is "twenty-three million, two hundred thirty-nine thousand, eight hundred twenty-eight".