1089188480 has 32 divisors (see below), whose sum is σ = 2603842740. Its totient is φ = 435675136.

The previous prime is 1089188461. The next prime is 1089188501. The reversal of 1089188480 is 848819801.

It can be written as a sum of positive squares in 2 ways, for example, as 1080568384 + 8620096 = 32872^2 + 2936^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850289 + ... + 851568.

Almost surely, 2^1089188480 is an apocalyptic number.

1089188480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089188480 is an abundant number, since it is smaller than the sum of its proper divisors (1514654260).

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

1089188480 is an equidigital number, since it uses as much as digits as its factorization.

1089188480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701876 (or 1701864 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 47.

The square root of 1089188480 is about 33002.8556340205. The cubic root of 1089188480 is about 1028.8869995852.

The spelling of 1089188480 in words is "one billion, eighty-nine million, one hundred eighty-eight thousand, four hundred eighty".