2822209 has 16 divisors (see below), whose sum is σ = 3225600. Its totient is φ = 2450880.

The previous prime is 2822207. The next prime is 2822213. The reversal of 2822209 is 9022282.

It is a cyclic number.

It is not a de Polignac number, because 2822209 - 2¹ = 2822207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2822201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18867 + ... + 19015.

It is an arithmetic number, because the mean of its divisors is an integer number (201600).

2^2822209 is an apocalyptic number.

It is an amenable number.

2822209 is a deficient number, since it is larger than the sum of its proper divisors (403391).

2822209 is a wasteful number, since it uses less digits than its factorization.

2822209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2822209 is about 1679.9431538002. The cubic root of 2822209 is about 141.3176447866.

The spelling of 2822209 in words is "two million, eight hundred twenty-two thousand, two hundred nine".