2243303 has 4 divisors (see below), whose sum is σ = 2375280. Its totient is φ = 2111328.

The previous prime is 2243287. The next prime is 2243309. The reversal of 2243303 is 3033422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2243303 - 2⁴ = 2243287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 131959 = 2243303 / (2 + 2 + 4 + 3 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243309) 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, 65963 + ... + 65996.

It is an arithmetic number, because the mean of its divisors is an integer number (593820).

2^2243303 is an apocalyptic number.

2243303 is a deficient number, since it is larger than the sum of its proper divisors (131977).

2243303 is a wasteful number, since it uses less digits than its factorization.

2243303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131976.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 2243303 is about 1497.7660030859. The cubic root of 2243303 is about 130.9069323233.

Adding to 2243303 its reverse (3033422), we get a palindrome (5276725).

The spelling of 2243303 in words is "two million, two hundred forty-three thousand, three hundred three".