2204045 has 4 divisors (see below), whose sum is σ = 2644860. Its totient is φ = 1763232.

The previous prime is 2204039. The next prime is 2204047. The reversal of 2204045 is 5404022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1406596 + 797449 = 1186^2 + 893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2204045 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220400 + ... + 220409.

It is an arithmetic number, because the mean of its divisors is an integer number (661215).

2^2204045 is an apocalyptic number.

It is an amenable number.

2204045 is a deficient number, since it is larger than the sum of its proper divisors (440815).

2204045 is an equidigital number, since it uses as much as digits as its factorization.

2204045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440814.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2204045 is about 1484.6026404395. The cubic root of 2204045 is about 130.1388063731.

Adding to 2204045 its reverse (5404022), we get a palindrome (7608067).

The spelling of 2204045 in words is "two million, two hundred four thousand, forty-five".