1080990 has 24 divisors (see below), whose sum is σ = 2810808. Its totient is φ = 288240.

The previous prime is 1080983. The next prime is 1081027. The reversal of 1080990 is 990801.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5916 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (117117).

2^1080990 is an apocalyptic number.

1080990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1080990 is an abundant number, since it is smaller than the sum of its proper divisors (1729818).

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

1080990 is a wasteful number, since it uses less digits than its factorization.

1080990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024 (or 12021 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1080990 is about 1039.7066894081. The cubic root of 1080990 is about 102.6298967855.

The spelling of 1080990 in words is "one million, eighty thousand, nine hundred ninety".