2004002043 has 4 divisors (see below), whose sum is σ = 2672002728. Its totient is φ = 1336001360.

The previous prime is 2004002023. The next prime is 2004002069. The reversal of 2004002043 is 3402004002.

It is a happy number.

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 2004002043 - 2¹³ = 2003993851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2004002023) 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, 334000338 + ... + 334000343.

It is an arithmetic number, because the mean of its divisors is an integer number (668000682).

Almost surely, 2^2004002043 is an apocalyptic number.

2004002043 is a deficient number, since it is larger than the sum of its proper divisors (668000685).

2004002043 is an equidigital number, since it uses as much as digits as its factorization.

2004002043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668000684.

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

The square root of 2004002043 is about 44766.0813898201. The cubic root of 2004002043 is about 1260.7608663498.

Adding to 2004002043 its reverse (3402004002), we get a palindrome (5406006045).

The spelling of 2004002043 in words is "two billion, four million, two thousand, forty-three".