22636680 has 96 divisors (see below), whose sum is σ = 74692800. Its totient is φ = 5484160.

The previous prime is 22636661. The next prime is 22636681. The reversal of 22636680 is 8663622.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (22636681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13741 + ... + 15299.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^22636680 is an apocalyptic number.

22636680 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 22636680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37346400).

22636680 is an abundant number, since it is smaller than the sum of its proper divisors (52056120).

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

22636680 is a wasteful number, since it uses less digits than its factorization.

22636680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 22636680 is about 4757.8020135352. The cubic root of 22636680 is about 282.8813030509.

The spelling of 22636680 in words is "twenty-two million, six hundred thirty-six thousand, six hundred eighty".