1090880 has 56 divisors (see below), whose sum is σ = 2974848. Its totient is φ = 373248.

The previous prime is 1090879. The next prime is 1090883. The reversal of 1090880 is 880901.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090883) 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, 1997 + ... + 2483.

2^1090880 is an apocalyptic number.

1090880 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 1090880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487424).

1090880 is an abundant number, since it is smaller than the sum of its proper divisors (1883968).

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

1090880 is an equidigital number, since it uses as much as digits as its factorization.

1090880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 1090880 is about 1044.4520094289. The cubic root of 1090880 is about 102.9419347843.

The spelling of 1090880 in words is "one million, ninety thousand, eight hundred eighty".