2243972 has 12 divisors (see below), whose sum is σ = 4097856. Its totient is φ = 1073160.

The previous prime is 2243959. The next prime is 2243987. The reversal of 2243972 is 2793422.

It is a happy 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, 12104 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (341488).

2^2243972 is an apocalyptic number.

It is an amenable number.

2243972 is a deficient number, since it is larger than the sum of its proper divisors (1853884).

2243972 is a wasteful number, since it uses less digits than its factorization.

2243972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24418 (or 24416 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 2243972 is about 1497.9893190540. The cubic root of 2243972 is about 130.9199440941.

The spelling of 2243972 in words is "two million, two hundred forty-three thousand, nine hundred seventy-two".