23720504 has 16 divisors (see below), whose sum is σ = 44656920. Its totient is φ = 11812000.

The previous prime is 23720503. The next prime is 23720519. The reversal of 23720504 is 40502732.

It is a self number, because there is not a number n which added to its sum of digits gives 23720504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23720503) by changing a digit.

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, 3899 + ... + 7914.

Almost surely, 2^23720504 is an apocalyptic number.

It is an amenable number.

23720504 is a deficient number, since it is larger than the sum of its proper divisors (20936416).

23720504 is a wasteful number, since it uses less digits than its factorization.

23720504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12070 (or 12066 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 23720504 is about 4870.3700064779. The cubic root of 23720504 is about 287.3258085333.

The spelling of 23720504 in words is "twenty-three million, seven hundred twenty thousand, five hundred four".