22490047368 has 24 divisors (see below), whose sum is σ = 60910545150. Its totient is φ = 7496682432.

The previous prime is 22490047343. The next prime is 22490047379. The reversal of 22490047368 is 86374009422.

22490047368 is a `hidden beast` number, since 2 + 249 + 0 + 0 + 47 + 368 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13289017284 + 9201030084 = 115278^2 + 95922^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×22490047368² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156180813 + ... + 156180956.

Almost surely, 2^22490047368 is an apocalyptic number.

It is an amenable number.

22490047368 is an abundant number, since it is smaller than the sum of its proper divisors (38420497782).

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

22490047368 is a wasteful number, since it uses less digits than its factorization.

22490047368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312361781 (or 312361774 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 22490047368 in words is "twenty-two billion, four hundred ninety million, forty-seven thousand, three hundred sixty-eight".