1089201792 has 192 divisors, whose sum is σ = 3403283040. Its totient is φ = 307722240.

The previous prime is 1089201769. The next prime is 1089201821. The reversal of 1089201792 is 2971029801.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×1089201792² = 2372721087392022528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1089201792.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2013042 + ... + 2013582.

Almost surely, 2^1089201792 is an apocalyptic number.

1089201792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089201792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701641520).

1089201792 is an abundant number, since it is smaller than the sum of its proper divisors (2314081248).

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

1089201792 is a wasteful number, since it uses less digits than its factorization.

1089201792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 1089201792 is about 33003.0573129218. The cubic root of 1089201792 is about 1028.8911912343.

The spelling of 1089201792 in words is "one billion, eighty-nine million, two hundred one thousand, seven hundred ninety-two".