2243321 has 4 divisors (see below), whose sum is σ = 2259600. Its totient is φ = 2227044.

The previous prime is 2243317. The next prime is 2243333. The reversal of 2243321 is 1233422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2243321 - 2² = 2243317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2243321.

It is not an unprimeable number, because it can be changed into a prime (2243221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7931 + ... + 8208.

It is an arithmetic number, because the mean of its divisors is an integer number (564900).

2^2243321 is an apocalyptic number.

It is an amenable number.

2243321 is a deficient number, since it is larger than the sum of its proper divisors (16279).

2243321 is a wasteful number, since it uses less digits than its factorization.

2243321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16278.

The product of its digits is 288, while the sum is 17.

The square root of 2243321 is about 1497.7720120232. The cubic root of 2243321 is about 130.9072824496.

Adding to 2243321 its reverse (1233422), we get a palindrome (3476743).

The spelling of 2243321 in words is "two million, two hundred forty-three thousand, three hundred twenty-one".