22088880 has 120 divisors (see below), whose sum is σ = 80954640. Its totient is φ = 5352960.

The previous prime is 22088879. The next prime is 22088897. The reversal of 22088880 is 8888022.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6526 + ... + 9314.

It is an arithmetic number, because the mean of its divisors is an integer number (674622).

Almost surely, 2^22088880 is an apocalyptic number.

22088880 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 22088880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40477320).

22088880 is an abundant number, since it is smaller than the sum of its proper divisors (58865760).

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

22088880 is a wasteful number, since it uses less digits than its factorization.

22088880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 22088880 is about 4699.8808495535. The cubic root of 22088880 is about 280.5807673466.

The spelling of 22088880 in words is "twenty-two million, eighty-eight thousand, eight hundred eighty".