2004000043 has 2 divisors, whose sum is σ = 2004000044. Its totient is φ = 2004000042.

The previous prime is 2003999971. The next prime is 2004000059. The reversal of 2004000043 is 3400004002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2004000043 - 2²⁵ = 1970445611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2003999987 and 2004000032.

It is not a weakly prime, because it can be changed into another prime (2004000343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002000021 + 1002000022.

It is an arithmetic number, because the mean of its divisors is an integer number (1002000022).

Almost surely, 2^2004000043 is an apocalyptic number.

2004000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004000043 is an equidigital number, since it uses as much as digits as its factorization.

2004000043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 2004000043 is about 44766.0590514734. The cubic root of 2004000043 is about 1260.7604469353.

Adding to 2004000043 its reverse (3400004002), we get a palindrome (5404004045).

The spelling of 2004000043 in words is "two billion, four million, forty-three", and thus it is an aban number.