2204209 has 8 divisors (see below), whose sum is σ = 2651840. Its totient is φ = 1789776.

The previous prime is 2204207. The next prime is 2204221. The reversal of 2204209 is 9024022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2204209 - 2¹ = 2204207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204207) 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, 8154 + ... + 8419.

It is an arithmetic number, because the mean of its divisors is an integer number (331480).

2^2204209 is an apocalyptic number.

It is an amenable number.

2204209 is a deficient number, since it is larger than the sum of its proper divisors (447631).

2204209 is a wasteful number, since it uses less digits than its factorization.

2204209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16599.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2204209 is about 1484.6578730469. The cubic root of 2204209 is about 130.1420341104.

The spelling of 2204209 in words is "two million, two hundred four thousand, two hundred nine".