23290560 has 84 divisors (see below), whose sum is σ = 80119728. Its totient is φ = 6210048.

The previous prime is 23290529. The next prime is 23290571. The reversal of 23290560 is 6509232.

It is a super-2 number, since 2×23290560² = 1084900370227200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1164 + ... + 6923.

Almost surely, 2^23290560 is an apocalyptic number.

23290560 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 23290560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40059864).

23290560 is an abundant number, since it is smaller than the sum of its proper divisors (56829168).

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

23290560 is a wasteful number, since it uses less digits than its factorization.

23290560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8110 (or 8097 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 23290560 is about 4826.0294238639. The cubic root of 23290560 is about 285.5792466618.

Adding to 23290560 its reverse (6509232), we get a palindrome (29799792).

The spelling of 23290560 in words is "twenty-three million, two hundred ninety thousand, five hundred sixty".