22089872 has 40 divisors (see below), whose sum is σ = 49330176. Its totient is φ = 9386496.

The previous prime is 22089871. The next prime is 22089877. The reversal of 22089872 is 27898022.

It is not an unprimeable number, because it can be changed into a prime (22089871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13448 + ... + 15000.

Almost surely, 2^22089872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22089872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24665088).

22089872 is an abundant number, since it is smaller than the sum of its proper divisors (27240304).

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

22089872 is a wasteful number, since it uses less digits than its factorization.

22089872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 22089872 is about 4699.9863829590. The cubic root of 22089872 is about 280.5849675287.

The spelling of 22089872 in words is "twenty-two million, eighty-nine thousand, eight hundred seventy-two".