1082780 has 12 divisors (see below), whose sum is σ = 2273880. Its totient is φ = 433104.

The previous prime is 1082777. The next prime is 1082801. The reversal of 1082780 is 872801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27050 + ... + 27089.

It is an arithmetic number, because the mean of its divisors is an integer number (189490).

2^1082780 is an apocalyptic number.

1082780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1082780 is an abundant number, since it is smaller than the sum of its proper divisors (1191100).

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

1082780 is a wasteful number, since it uses less digits than its factorization.

1082780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54148 (or 54146 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 1082780 is about 1040.5671530468. The cubic root of 1082780 is about 102.6865134698.

The spelling of 1082780 in words is "one million, eighty-two thousand, seven hundred eighty".