2204404 has 12 divisors (see below), whose sum is σ = 3892644. Its totient is φ = 1092224.

The previous prime is 2204393. The next prime is 2204431. The reversal of 2204404 is 4044022.

It can be written as a sum of positive squares in 2 ways, for example, as 250000 + 1954404 = 500^2 + 1398^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987 + ... + 2890.

It is an arithmetic number, because the mean of its divisors is an integer number (324387).

2^2204404 is an apocalyptic number.

It is an amenable number.

2204404 is a deficient number, since it is larger than the sum of its proper divisors (1688240).

2204404 is a wasteful number, since it uses less digits than its factorization.

2204404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994 (or 4992 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2204404 is about 1484.7235432901. The cubic root of 2204404 is about 130.1458717604.

Adding to 2204404 its reverse (4044022), we get a palindrome (6248426).

It can be divided in two parts, 220 and 4404, that added together give a square (4624 = 68²).

The spelling of 2204404 in words is "two million, two hundred four thousand, four hundred four".