2243603 has 4 divisors (see below), whose sum is σ = 2253888. Its totient is φ = 2233320.

The previous prime is 2243597. The next prime is 2243617. The reversal of 2243603 is 3063422.

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 2243603 - 2⁴ = 2243587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243623) 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, 4808 + ... + 5253.

It is an arithmetic number, because the mean of its divisors is an integer number (563472).

2^2243603 is an apocalyptic number.

2243603 is a deficient number, since it is larger than the sum of its proper divisors (10285).

2243603 is a wasteful number, since it uses less digits than its factorization.

2243603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10284.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2243603 is about 1497.8661488932. The cubic root of 2243603 is about 130.9127675180.

The spelling of 2243603 in words is "two million, two hundred forty-three thousand, six hundred three".