2004000000 has 252 divisors, whose sum is σ = 6706789152. Its totient is φ = 531200000.

The previous prime is 2003999971. The next prime is 2004000043. The reversal of 2004000000 is 4002.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 11999917 + ... + 12000083.

Almost surely, 2^2004000000 is an apocalyptic number.

2004000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2004000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3353394576).

2004000000 is an abundant number, since it is smaller than the sum of its proper divisors (4702789152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2004000000 is an frugal number, since it uses more digits than its factorization.

2004000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 2004000000 is about 44766.0585711988. The cubic root of 2004000000 is about 1260.7604379179.

Adding to 2004000000 its reverse (4002), we get a palindrome (2004004002).

The spelling of 2004000000 in words is "two billion, four million", and thus it is an aban number and an eban number.