2203444 has 6 divisors (see below), whose sum is σ = 3856034. Its totient is φ = 1101720.

The previous prime is 2203441. The next prime is 2203447. The reversal of 2203444 is 4443022.

2203444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2203441) and next prime (2203447).

It can be written as a sum of positive squares in only one way, i.e., 1411344 + 792100 = 1188^2 + 890^2 .

It is a super-2 number, since 2×2203444² = 9710330922272, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275427 + ... + 275434.

2^2203444 is an apocalyptic number.

It is an amenable number.

2203444 is a deficient number, since it is larger than the sum of its proper divisors (1652590).

2203444 is a wasteful number, since it uses less digits than its factorization.

2203444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550865 (or 550863 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2203444 is about 1484.4002155753. The cubic root of 2203444 is about 130.1269765280.

Adding to 2203444 its reverse (4443022), we get a palindrome (6646466).

The spelling of 2203444 in words is "two million, two hundred three thousand, four hundred forty-four".