1085880 has 32 divisors (see below), whose sum is σ = 3258000. Its totient is φ = 289536.

The previous prime is 1085873. The next prime is 1085881. The reversal of 1085880 is 885801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4405 + ... + 4644.

2^1085880 is an apocalyptic number.

1085880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1085880 is an abundant number, since it is smaller than the sum of its proper divisors (2172120).

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

1085880 is a wasteful number, since it uses less digits than its factorization.

1085880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9063 (or 9059 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 1085880 is about 1042.0556607015. The cubic root of 1085880 is about 102.7844172861.

The spelling of 1085880 in words is "one million, eighty-five thousand, eight hundred eighty".