23456660 has 12 divisors (see below), whose sum is σ = 49259028. Its totient is φ = 9382656.

The previous prime is 23456627. The next prime is 23456669. The reversal of 23456660 is 6665432.

It can be written as a sum of positive squares in 2 ways, for example, as 13293316 + 10163344 = 3646^2 + 3188^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23456669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586397 + ... + 586436.

It is an arithmetic number, because the mean of its divisors is an integer number (4104919).

Almost surely, 2^23456660 is an apocalyptic number.

23456660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23456660 is an abundant number, since it is smaller than the sum of its proper divisors (25802368).

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

23456660 is a wasteful number, since it uses less digits than its factorization.

23456660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172842 (or 1172840 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 23456660 is about 4843.2076147941. The cubic root of 23456660 is about 286.2565224196.

The spelling of 23456660 in words is "twenty-three million, four hundred fifty-six thousand, six hundred sixty".