1122084990 has 96 divisors (see below), whose sum is σ = 3243292416. Its totient is φ = 267287040.

The previous prime is 1122084967. The next prime is 1122085067. The reversal of 1122084990 is 994802211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20802 + ... + 51738.

It is an arithmetic number, because the mean of its divisors is an integer number (33784296).

Almost surely, 2^1122084990 is an apocalyptic number.

1122084990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122084990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1621646208).

1122084990 is an abundant number, since it is smaller than the sum of its proper divisors (2121207426).

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

1122084990 is a wasteful number, since it uses less digits than its factorization.

1122084990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30994 (or 30991 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1122084990 is about 33497.5370736417. The cubic root of 1122084990 is about 1039.1428434145.

The spelling of 1122084990 in words is "one billion, one hundred twenty-two million, eighty-four thousand, nine hundred ninety".