2004243 has 16 divisors (see below), whose sum is σ = 2881536. Its totient is φ = 1235520.

The previous prime is 2004227. The next prime is 2004251. The reversal of 2004243 is 3424002.

It is a happy number.

It is not a de Polignac number, because 2004243 - 2⁴ = 2004227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2004293) 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 15 ways as a sum of consecutive naturals, for example, 1671 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (180096).

2^2004243 is an apocalyptic number.

2004243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2004243 is a deficient number, since it is larger than the sum of its proper divisors (877293).

2004243 is a wasteful number, since it uses less digits than its factorization.

2004243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2004243 is about 1415.7128946224. The cubic root of 2004243 is about 126.0811394738.

Adding to 2004243 its reverse (3424002), we get a palindrome (5428245).

The spelling of 2004243 in words is "two million, four thousand, two hundred forty-three".