2216586 has 16 divisors (see below), whose sum is σ = 4586400. Its totient is φ = 713328.

The previous prime is 2216569. The next prime is 2216587. The reversal of 2216586 is 6856122.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2216587) 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, 6196 + ... + 6543.

It is an arithmetic number, because the mean of its divisors is an integer number (286650).

2^2216586 is an apocalyptic number.

2216586 is an abundant number, since it is smaller than the sum of its proper divisors (2369814).

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

2216586 is a wasteful number, since it uses less digits than its factorization.

2216586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12773.

The product of its digits is 5760, while the sum is 30.

The square root of 2216586 is about 1488.8203383888. The cubic root of 2216586 is about 130.3851693146.

The spelling of 2216586 in words is "two million, two hundred sixteen thousand, five hundred eighty-six".