2243243 has 4 divisors (see below), whose sum is σ = 2250768. Its totient is φ = 2235720.

The previous prime is 2243221. The next prime is 2243251. The reversal of 2243243 is 3423422.

2243243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2243243 - 2¹² = 2239147 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2243203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3296 + ... + 3917.

It is an arithmetic number, because the mean of its divisors is an integer number (562692).

2^2243243 is an apocalyptic number.

2243243 is a deficient number, since it is larger than the sum of its proper divisors (7525).

2243243 is an equidigital number, since it uses as much as digits as its factorization.

2243243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524.

The product of its digits is 1152, while the sum is 20.

The square root of 2243243 is about 1497.7459731209. The cubic root of 2243243 is about 130.9057652219.

Adding to 2243243 its reverse (3423422), we get a palindrome (5666665).

The spelling of 2243243 in words is "two million, two hundred forty-three thousand, two hundred forty-three".