23890680 has 128 divisors (see below), whose sum is σ = 86918400. Its totient is φ = 5788800.

The previous prime is 23890673. The next prime is 23890681. The reversal of 23890680 is 8609832.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23890681) 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 31 ways as a sum of consecutive naturals, for example, 10875 + ... + 12885.

It is an arithmetic number, because the mean of its divisors is an integer number (679050).

Almost surely, 2^23890680 is an apocalyptic number.

23890680 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 23890680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43459200).

23890680 is an abundant number, since it is smaller than the sum of its proper divisors (63027720).

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

23890680 is a wasteful number, since it uses less digits than its factorization.

23890680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 23890680 is about 4887.8093252499. The cubic root of 23890680 is about 288.0112842801.

The spelling of 23890680 in words is "twenty-three million, eight hundred ninety thousand, six hundred eighty".