23566980 has 48 divisors (see below), whose sum is σ = 67241664. Its totient is φ = 6165120.

The previous prime is 23566969. The next prime is 23566987. The reversal of 23566980 is 8966532.

It is not an unprimeable number, because it can be changed into a prime (23566987) 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, 526 + ... + 6885.

It is an arithmetic number, because the mean of its divisors is an integer number (1400868).

Almost surely, 2^23566980 is an apocalyptic number.

23566980 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 23566980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33620832).

23566980 is an abundant number, since it is smaller than the sum of its proper divisors (43674684).

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

23566980 is a wasteful number, since it uses less digits than its factorization.

23566980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7476 (or 7474 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 23566980 is about 4854.5834012817. The cubic root of 23566980 is about 286.7045890580.

The spelling of 23566980 in words is "twenty-three million, five hundred sixty-six thousand, nine hundred eighty".