22981590442 has 16 divisors (see below), whose sum is σ = 36072079272. Its totient is φ = 10969283520.

The previous prime is 22981590431. The next prime is 22981590451. The reversal of 22981590442 is 24409518922.

It can be written as a sum of positive squares in 4 ways, for example, as 20912341321 + 2069249121 = 144611^2 + 45489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22981590392 and 22981590401.

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, 2925909 + ... + 2933752.

Almost surely, 2^22981590442 is an apocalyptic number.

22981590442 is a deficient number, since it is larger than the sum of its proper divisors (13090488830).

22981590442 is a wasteful number, since it uses less digits than its factorization.

22981590442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5859753.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 22981590442 in words is "twenty-two billion, nine hundred eighty-one million, five hundred ninety thousand, four hundred forty-two".