2243944 has 16 divisors (see below), whose sum is σ = 4233600. Its totient is φ = 1114992.

The previous prime is 2243911. The next prime is 2243959. The reversal of 2243944 is 4493422.

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, 649 + ... + 2215.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

2^2243944 is an apocalyptic number.

It is an amenable number.

2243944 is a deficient number, since it is larger than the sum of its proper divisors (1989656).

2243944 is a wasteful number, since it uses less digits than its factorization.

2243944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752 (or 1748 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 2243944 is about 1497.9799731639. The cubic root of 2243944 is about 130.9193995576.

The spelling of 2243944 in words is "two million, two hundred forty-three thousand, nine hundred forty-four".