23504020 has 24 divisors (see below), whose sum is σ = 49740768. Its totient is φ = 9328800.

The previous prime is 23504011. The next prime is 23504021. The reversal of 23504020 is 2040532.

It is a junction number, because it is equal to n+sod(n) for n = 23503985 and 23504003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23504021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1866 + ... + 7105.

It is an arithmetic number, because the mean of its divisors is an integer number (2072532).

Almost surely, 2^23504020 is an apocalyptic number.

23504020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23504020 is an abundant number, since it is smaller than the sum of its proper divisors (26236748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23504020 is a wasteful number, since it uses less digits than its factorization.

23504020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 23504020 is about 4848.0944710267. The cubic root of 23504020 is about 286.4490476270.

Adding to 23504020 its reverse (2040532), we get a palindrome (25544552).

The spelling of 23504020 in words is "twenty-three million, five hundred four thousand, twenty".