22409491204 has 45 divisors (see below), whose sum is σ = 41078701657. Its totient is φ = 10696820288.

The previous prime is 22409491201. The next prime is 22409491231. The reversal of 22409491204 is 40219490422.

The square root of 22409491204 is 149698.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 17213964804 + 5195526400 = 131202^2 + 72080^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22409491201) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 251791992 + ... + 251792080.

Almost surely, 2^22409491204 is an apocalyptic number.

22409491204 is the 149698-th square number.

It is an amenable number.

22409491204 is a deficient number, since it is larger than the sum of its proper divisors (18669210453).

22409491204 is an frugal number, since it uses more digits than its factorization.

22409491204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 22409491204 in words is "twenty-two billion, four hundred nine million, four hundred ninety-one thousand, two hundred four".