1097828992 has 96 divisors (see below), whose sum is σ = 2506589820. Its totient is φ = 474464256.

The previous prime is 1097828971. The next prime is 1097829049. The reversal of 1097828992 is 2998287901.

It can be written as a sum of positive squares in 6 ways, for example, as 1058591296 + 39237696 = 32536^2 + 6264^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5572638 + ... + 5572834.

Almost surely, 2^1097828992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097828992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1253294910).

1097828992 is an abundant number, since it is smaller than the sum of its proper divisors (1408760828).

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

1097828992 is an equidigital number, since it uses as much as digits as its factorization.

1097828992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 1097828992 is about 33133.5025616067. The cubic root of 1097828992 is about 1031.6005504935.

The spelling of 1097828992 in words is "one billion, ninety-seven million, eight hundred twenty-eight thousand, nine hundred ninety-two".