2243205 has 24 divisors (see below), whose sum is σ = 3943680. Its totient is φ = 1179360.

The previous prime is 2243203. The next prime is 2243207. The reversal of 2243205 is 5023422.

It is an interprime number because it is at equal distance from previous prime (2243203) and next prime (2243207).

It is not a de Polignac number, because 2243205 - 2¹ = 2243203 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3240 + ... + 3870.

It is an arithmetic number, because the mean of its divisors is an integer number (164320).

2^2243205 is an apocalyptic number.

It is an amenable number.

2243205 is a deficient number, since it is larger than the sum of its proper divisors (1700475).

2243205 is a wasteful number, since it uses less digits than its factorization.

2243205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2243205 is about 1497.7332873379. The cubic root of 2243205 is about 130.9050260470.

Adding to 2243205 its reverse (5023422), we get a palindrome (7266627).

The spelling of 2243205 in words is "two million, two hundred forty-three thousand, two hundred five".