23185680 has 160 divisors (see below), whose sum is σ = 84589824. Its totient is φ = 5142528.

The previous prime is 23185649. The next prime is 23185693. The reversal of 23185680 is 8658132.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61974 + ... + 62346.

Almost surely, 2^23185680 is an apocalyptic number.

23185680 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 23185680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42294912).

23185680 is an abundant number, since it is smaller than the sum of its proper divisors (61404144).

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

23185680 is a wasteful number, since it uses less digits than its factorization.

23185680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 23185680 is about 4815.1510879722. The cubic root of 23185680 is about 285.1499364950.

The spelling of 23185680 in words is "twenty-three million, one hundred eighty-five thousand, six hundred eighty".