9120990244 has 6 divisors (see below), whose sum is σ = 15961732934. Its totient is φ = 4560495120.

The previous prime is 9120990233. The next prime is 9120990311. The reversal of 9120990244 is 4420990219.

It can be written as a sum of positive squares in only one way, i.e., 5977145344 + 3143844900 = 77312^2 + 56070^2 .

It is a super-2 number, since 2×9120990244² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9120990197 and 9120990206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140123777 + ... + 1140123784.

Almost surely, 2^9120990244 is an apocalyptic number.

It is an amenable number.

9120990244 is a deficient number, since it is larger than the sum of its proper divisors (6840742690).

9120990244 is a wasteful number, since it uses less digits than its factorization.

9120990244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280247565 (or 2280247563 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 9120990244 is about 95503.8755443987. The cubic root of 9120990244 is about 2089.3634687720.

The spelling of 9120990244 in words is "nine billion, one hundred twenty million, nine hundred ninety thousand, two hundred forty-four".