1089180 has 48 divisors (see below), whose sum is σ = 3390240. Its totient is φ = 290304.

The previous prime is 1089161. The next prime is 1089191. The reversal of 1089180 is 819801.

1089180 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (70630).

2^1089180 is an apocalyptic number.

1089180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089180 is an abundant number, since it is smaller than the sum of its proper divisors (2301060).

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

1089180 is a wasteful number, since it uses less digits than its factorization.

1089180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1089180 is about 1043.6378682282. The cubic root of 1089180 is about 102.8884329406. Note that the first 3 decimals are identical.

The spelling of 1089180 in words is "one million, eighty-nine thousand, one hundred eighty".