2243976 has 96 divisors (see below), whose sum is σ = 6949440. Its totient is φ = 590976.

The previous prime is 2243959. The next prime is 2243987. The reversal of 2243976 is 6793422.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60630 + ... + 60666.

It is an arithmetic number, because the mean of its divisors is an integer number (72390).

2^2243976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3474720).

2243976 is an abundant number, since it is smaller than the sum of its proper divisors (4705464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2243976 is a wasteful number, since it uses less digits than its factorization.

2243976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 68 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 2243976 is about 1497.9906541765. The cubic root of 2243976 is about 130.9200218847.

The spelling of 2243976 in words is "two million, two hundred forty-three thousand, nine hundred seventy-six".