22688880 has 160 divisors (see below), whose sum is σ = 76495104. Its totient is φ = 5541888.

The previous prime is 22688873. The next prime is 22688899. The reversal of 22688880 is 8888622.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273319 + ... + 273401.

Almost surely, 2^22688880 is an apocalyptic number.

22688880 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 22688880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38247552).

22688880 is an abundant number, since it is smaller than the sum of its proper divisors (53806224).

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

22688880 is a wasteful number, since it uses less digits than its factorization.

22688880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 22688880 is about 4763.2845810428. The cubic root of 22688880 is about 283.0985767874.

The spelling of 22688880 in words is "twenty-two million, six hundred eighty-eight thousand, eight hundred eighty".