22000680 has 128 divisors (see below), whose sum is σ = 79027200. Its totient is φ = 5412096.

The previous prime is 22000679. The next prime is 22000721. The reversal of 22000680 is 8600022.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 13257 + ... + 14823.

It is an arithmetic number, because the mean of its divisors is an integer number (617400).

Almost surely, 2^22000680 is an apocalyptic number.

22000680 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 22000680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39513600).

22000680 is an abundant number, since it is smaller than the sum of its proper divisors (57026520).

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

22000680 is a wasteful number, since it uses less digits than its factorization.

22000680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 22000680 is about 4690.4882475069. The cubic root of 22000680 is about 280.2068199854.

The spelling of 22000680 in words is "twenty-two million, six hundred eighty", and thus it is an aban number.