23403504 has 40 divisors (see below), whose sum is σ = 61457872. Its totient is φ = 7672320.

The previous prime is 23403503. The next prime is 23403511. The reversal of 23403504 is 40530432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403503) 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 7 ways as a sum of consecutive naturals, for example, 1069 + ... + 6924.

Almost surely, 2^23403504 is an apocalyptic number.

23403504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23403504 is an abundant number, since it is smaller than the sum of its proper divisors (38054368).

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

23403504 is a wasteful number, since it uses less digits than its factorization.

23403504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8065 (or 8059 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23403504 is about 4837.7168168466. The cubic root of 23403504 is about 286.0401267316.

Adding to 23403504 its reverse (40530432), we get a palindrome (63933936).

The spelling of 23403504 in words is "twenty-three million, four hundred three thousand, five hundred four".