1116580 has 12 divisors (see below), whose sum is σ = 2344860. Its totient is φ = 446624.

The previous prime is 1116571. The next prime is 1116593. The reversal of 1116580 is 856111.

1116580 = T₂₁₆ + T₂₁₇ + ... + T₂₅₅.

It can be written as a sum of positive squares in 2 ways, for example, as 440896 + 675684 = 664^2 + 822^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27895 + ... + 27934.

It is an arithmetic number, because the mean of its divisors is an integer number (195405).

2^1116580 is an apocalyptic number.

1116580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116580 is an abundant number, since it is smaller than the sum of its proper divisors (1228280).

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

1116580 is a wasteful number, since it uses less digits than its factorization.

1116580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55838 (or 55836 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1116580 is about 1056.6834909281. The cubic root of 1116580 is about 103.7440699180.

The spelling of 1116580 in words is "one million, one hundred sixteen thousand, five hundred eighty".