1089081088 has 72 divisors (see below), whose sum is σ = 2305304960. Its totient is φ = 512593920.

The previous prime is 1089081067. The next prime is 1089081127. The reversal of 1089081088 is 8801809801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291778 + ... + 295486.

Almost surely, 2^1089081088 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 1089081088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152652480).

1089081088 is an abundant number, since it is smaller than the sum of its proper divisors (1216223872).

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

1089081088 is an equidigital number, since it uses as much as digits as its factorization.

1089081088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 43.

The square root of 1089081088 is about 33001.2285831907. The cubic root of 1089081088 is about 1028.8531830124.

The spelling of 1089081088 in words is "one billion, eighty-nine million, eighty-one thousand, eighty-eight".