1089270000 has 900 divisors, whose sum is σ = 5023298280. Its totient is φ = 217728000.

The previous prime is 1089269999. The next prime is 1089270029. The reversal of 1089270000 is 729801.

It is a tau number, because it is divible by the number of its divisors (900).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 57329991 + ... + 57330009.

Almost surely, 2^1089270000 is an apocalyptic number.

1089270000 is a gapful number since it is divisible by the number (10) 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 1089270000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2511649140).

1089270000 is an abundant number, since it is smaller than the sum of its proper divisors (3934028280).

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

1089270000 is a wasteful number, since it uses less digits than its factorization.

1089270000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1089270000 is about 33004.0906555536. The cubic root of 1089270000 is about 1028.9126678624.

Adding to 1089270000 its reverse (729801), we get a palindrome (1089999801).

The spelling of 1089270000 in words is "one billion, eighty-nine million, two hundred seventy thousand".