22149939328 has 32 divisors (see below), whose sum is σ = 48138365520. Its totient is φ = 10068153600.

The previous prime is 22149939283. The next prime is 22149939349. The reversal of 22149939328 is 82393994122.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 7864338 + ... + 7867153.

Almost surely, 2^22149939328 is an apocalyptic number.

It is an amenable number.

22149939328 is an abundant number, since it is smaller than the sum of its proper divisors (25988426192).

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

22149939328 is a wasteful number, since it uses less digits than its factorization.

22149939328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15731516 (or 15731504 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 52.

The spelling of 22149939328 in words is "twenty-two billion, one hundred forty-nine million, nine hundred thirty-nine thousand, three hundred twenty-eight".