1089173488 has 80 divisors (see below), whose sum is σ = 2375847936. Its totient is φ = 480372480.

The previous prime is 1089173443. The next prime is 1089173543. The reversal of 1089173488 is 8843719801.

It is a super-2 number, since 2×1089173488² = 2372597773924172288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419073 + ... + 421663.

Almost surely, 2^1089173488 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 1089173488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187923968).

1089173488 is an abundant number, since it is smaller than the sum of its proper divisors (1286674448).

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

1089173488 is a wasteful number, since it uses less digits than its factorization.

1089173488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702 (or 2696 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 1089173488 is about 33002.6285013785. The cubic root of 1089173488 is about 1028.8822789009.

The spelling of 1089173488 in words is "one billion, eighty-nine million, one hundred seventy-three thousand, four hundred eighty-eight".