2243245 has 12 divisors (see below), whose sum is σ = 2761020. Its totient is φ = 1749440.

The previous prime is 2243221. The next prime is 2243251. The reversal of 2243245 is 5423422.

2243245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 609961 + 1633284 = 781^2 + 1278^2 .

It is not a de Polignac number, because 2243245 - 2⁹ = 2242733 is a prime.

2243245 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 25161 + ... + 25249.

It is an arithmetic number, because the mean of its divisors is an integer number (230085).

2^2243245 is an apocalyptic number.

It is an amenable number.

2243245 is a deficient number, since it is larger than the sum of its proper divisors (517775).

2243245 is an frugal number, since it uses more digits than its factorization.

2243245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 165 counting only the distinct ones).

The product of its digits is 1920, while the sum is 22.

The square root of 2243245 is about 1497.7466407908. The cubic root of 2243245 is about 130.9058041256.

Adding to 2243245 its reverse (5423422), we get a palindrome (7666667).

The spelling of 2243245 in words is "two million, two hundred forty-three thousand, two hundred forty-five".