9281022790 has 128 divisors (see below), whose sum is σ = 19324956672. Its totient is φ = 3182699520.

The previous prime is 9281022781. The next prime is 9281022797. The reversal of 9281022790 is 972201829.

It is a super-2 number, since 2×9281022790² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9281022797) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29651674 + ... + 29651986.

It is an arithmetic number, because the mean of its divisors is an integer number (150976224).

Almost surely, 2^9281022790 is an apocalyptic number.

9281022790 is an abundant number, since it is smaller than the sum of its proper divisors (10043933882).

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

9281022790 is a wasteful number, since it uses less digits than its factorization.

9281022790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 9281022790 is about 96338.0651144707. The cubic root of 9281022790 is about 2101.5123489935.

It can be divided in two parts, 92810 and 22790, that added together give a square (115600 = 340²).

The spelling of 9281022790 in words is "nine billion, two hundred eighty-one million, twenty-two thousand, seven hundred ninety".