23420504 has 16 divisors (see below), whose sum is σ = 43976520. Its totient is φ = 11693440.

The previous prime is 23420479. The next prime is 23420533. The reversal of 23420504 is 40502432.

It is a super-2 number, since 2×23420504² = 1097040015228032, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5387 + ... + 8709.

Almost surely, 2^23420504 is an apocalyptic number.

It is an amenable number.

23420504 is a deficient number, since it is larger than the sum of its proper divisors (20556016).

23420504 is a wasteful number, since it uses less digits than its factorization.

23420504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210 (or 4206 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 23420504 is about 4839.4735250851. The cubic root of 23420504 is about 286.1093685744.

Adding to 23420504 its reverse (40502432), we get a palindrome (63922936).

The spelling of 23420504 in words is "twenty-three million, four hundred twenty thousand, five hundred four".