1089120 has 48 divisors (see below), whose sum is σ = 3432240. Its totient is φ = 290304.

The previous prime is 1089113. The next prime is 1089133. The reversal of 1089120 is 219801.

It is a tau number, because it is divible by the number of its divisors (48).

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, 655 + ... + 1614.

It is an arithmetic number, because the mean of its divisors is an integer number (71505).

2^1089120 is an apocalyptic number.

1089120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089120 is an abundant number, since it is smaller than the sum of its proper divisors (2343120).

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

1089120 is a wasteful number, since it uses less digits than its factorization.

1089120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287 (or 2279 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1089120 is about 1043.6091222292. The cubic root of 1089120 is about 102.8865436235.

The spelling of 1089120 in words is "one million, eighty-nine thousand, one hundred twenty".