2116580 has 12 divisors (see below), whose sum is σ = 4444860. Its totient is φ = 846624.

The previous prime is 2116579. The next prime is 2116591. The reversal of 2116580 is 856112.

It can be written as a sum of positive squares in 2 ways, for example, as 379456 + 1737124 = 616^2 + 1318^2 .

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, 52895 + ... + 52934.

It is an arithmetic number, because the mean of its divisors is an integer number (370405).

2^2116580 is an apocalyptic number.

2116580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116580 is an abundant number, since it is smaller than the sum of its proper divisors (2328280).

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

2116580 is a wasteful number, since it uses less digits than its factorization.

2116580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105838 (or 105836 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2116580 is about 1454.8470710009. The cubic root of 2116580 is about 128.3940493420.

The spelling of 2116580 in words is "two million, one hundred sixteen thousand, five hundred eighty".