22690880 has 56 divisors (see below), whose sum is σ = 56400192. Its totient is φ = 8678912.

The previous prime is 22690861. The next prime is 22690891. The reversal of 22690880 is 8809622.

It is a self number, because there is not a number n which added to its sum of digits gives 22690880.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5819 + ... + 8901.

Almost surely, 2^22690880 is an apocalyptic number.

22690880 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 22690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28200096).

22690880 is an abundant number, since it is smaller than the sum of its proper divisors (33709312).

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

22690880 is a wasteful number, since it uses less digits than its factorization.

22690880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3113 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 22690880 is about 4763.4945155841. The cubic root of 22690880 is about 283.1068948198.

The spelling of 22690880 in words is "twenty-two million, six hundred ninety thousand, eight hundred eighty".