22490894280 has 32 divisors (see below), whose sum is σ = 67472683200. Its totient is φ = 5997571776.

The previous prime is 22490894273. The next prime is 22490894297. The reversal of 22490894280 is 8249809422.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93711940 + ... + 93712179.

It is an arithmetic number, because the mean of its divisors is an integer number (2108521350).

Almost surely, 2^22490894280 is an apocalyptic number.

22490894280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22490894280 is an abundant number, since it is smaller than the sum of its proper divisors (44981788920).

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

22490894280 is a wasteful number, since it uses less digits than its factorization.

22490894280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187424133 (or 187424129 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 22490894280 in words is "twenty-two billion, four hundred ninety million, eight hundred ninety-four thousand, two hundred eighty".