22189994928 has 160 divisors (see below), whose sum is σ = 65968158720. Its totient is φ = 7134117120.

The previous prime is 22189994891. The next prime is 22189994963. The reversal of 22189994928 is 82949998122.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4242651 + ... + 4247877.

It is an arithmetic number, because the mean of its divisors is an integer number (412300992).

Almost surely, 2^22189994928 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 22189994928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32984079360).

22189994928 is an abundant number, since it is smaller than the sum of its proper divisors (43778163792).

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

22189994928 is a wasteful number, since it uses less digits than its factorization.

22189994928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592 (or 5580 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 63.

The spelling of 22189994928 in words is "twenty-two billion, one hundred eighty-nine million, nine hundred ninety-four thousand, nine hundred twenty-eight".