23508320 has 144 divisors (see below), whose sum is σ = 65672208. Its totient is φ = 7879680.

The previous prime is 23508311. The next prime is 23508337. The reversal of 23508320 is 2380532.

It is a super-2 number, since 2×23508320² = 1105282218444800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 635342 + ... + 635378.

It is an arithmetic number, because the mean of its divisors is an integer number (456057).

Almost surely, 2^23508320 is an apocalyptic number.

23508320 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 23508320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32836104).

23508320 is an abundant number, since it is smaller than the sum of its proper divisors (42163888).

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

23508320 is a wasteful number, since it uses less digits than its factorization.

23508320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 23508320 is about 4848.5379239519. The cubic root of 23508320 is about 286.4665149340.

Adding to 23508320 its reverse (2380532), we get a palindrome (25888852).

The spelling of 23508320 in words is "twenty-three million, five hundred eight thousand, three hundred twenty".