2004000439 has 4 divisors (see below), whose sum is σ = 2290286224. Its totient is φ = 1717714656.

The previous prime is 2004000379. The next prime is 2004000461. The reversal of 2004000439 is 9340004002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2004000439 - 2¹¹ = 2003998391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004000499) 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, 143142882 + ... + 143142895.

It is an arithmetic number, because the mean of its divisors is an integer number (572571556).

Almost surely, 2^2004000439 is an apocalyptic number.

2004000439 is a deficient number, since it is larger than the sum of its proper divisors (286285785).

2004000439 is an equidigital number, since it uses as much as digits as its factorization.

2004000439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286285784.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2004000439 is about 44766.0634744669. The cubic root of 2004000439 is about 1260.7605299794.

The spelling of 2004000439 in words is "two billion, four million, four hundred thirty-nine", and thus it is an aban number.