2004000003 has 6 divisors (see below), whose sum is σ = 2894666684. Its totient is φ = 1335999996.

The previous prime is 2003999971. The next prime is 2004000043. The reversal of 2004000003 is 3000004002.

It is not a de Polignac number, because 2004000003 - 2⁵ = 2003999971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 222666667 = 2004000003 / (2 + 0 + 0 + 4 + 0 + 0 + 0 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2004000043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111333325 + ... + 111333342.

Almost surely, 2^2004000003 is an apocalyptic number.

2004000003 is a deficient number, since it is larger than the sum of its proper divisors (890666681).

2004000003 is a wasteful number, since it uses less digits than its factorization.

2004000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222666673 (or 222666670 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 2004000003 is about 44766.0586047063. The cubic root of 2004000003 is about 1260.7604385470.

Adding to 2004000003 its reverse (3000004002), we get a palindrome (5004004005).

The spelling of 2004000003 in words is "two billion, four million, three", and thus it is an aban number.