23890560 has 128 divisors (see below), whose sum is σ = 79608960. Its totient is φ = 6082560.

The previous prime is 23890549. The next prime is 23890561. The reversal of 23890560 is 6509832.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×23890560² = 1141517714227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23890561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43890 + ... + 44430.

It is an arithmetic number, because the mean of its divisors is an integer number (621945).

Almost surely, 2^23890560 is an apocalyptic number.

23890560 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 23890560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39804480).

23890560 is an abundant number, since it is smaller than the sum of its proper divisors (55718400).

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

23890560 is a wasteful number, since it uses less digits than its factorization.

23890560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 23890560 is about 4887.7970497966. The cubic root of 23890560 is about 288.0108020640.

The spelling of 23890560 in words is "twenty-three million, eight hundred ninety thousand, five hundred sixty".