22290880 has 56 divisors (see below), whose sum is σ = 54406800. Its totient is φ = 8693760.

The previous prime is 22290871. The next prime is 22290883. The reversal of 22290880 is 8809222.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22290883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12271 + ... + 13969.

It is an arithmetic number, because the mean of its divisors is an integer number (971550).

Almost surely, 2^22290880 is an apocalyptic number.

22290880 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 22290880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27203400).

22290880 is an abundant number, since it is smaller than the sum of its proper divisors (32115920).

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

22290880 is a wasteful number, since it uses less digits than its factorization.

22290880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 22290880 is about 4721.3218488046. The cubic root of 22290880 is about 281.4334651519.

The spelling of 22290880 in words is "twenty-two million, two hundred ninety thousand, eight hundred eighty".