23304320 has 64 divisors (see below), whose sum is σ = 60018840. Its totient is φ = 8601600.

The previous prime is 23304319. The next prime is 23304353. The reversal of 23304320 is 2340332.

It can be written as a sum of positive squares in 4 ways, for example, as 14684224 + 8620096 = 3832^2 + 2936^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6920 + ... + 9720.

Almost surely, 2^23304320 is an apocalyptic number.

23304320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23304320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30009420).

23304320 is an abundant number, since it is smaller than the sum of its proper divisors (36714520).

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

23304320 is a wasteful number, since it uses less digits than its factorization.

23304320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833 (or 2821 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 23304320 is about 4827.4548159460. The cubic root of 23304320 is about 285.6354754061.

Adding to 23304320 its reverse (2340332), we get a palindrome (25644652).

The spelling of 23304320 in words is "twenty-three million, three hundred four thousand, three hundred twenty".