2004243820 has 24 divisors (see below), whose sum is σ = 4234122144. Its totient is φ = 796895616.

The previous prime is 2004243811. The next prime is 2004243859. The reversal of 2004243820 is 283424002.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 296697 + ... + 303376.

It is an arithmetic number, because the mean of its divisors is an integer number (176421756).

Almost surely, 2^2004243820 is an apocalyptic number.

2004243820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004243820 is an abundant number, since it is smaller than the sum of its proper divisors (2229878324).

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

2004243820 is a wasteful number, since it uses less digits than its factorization.

2004243820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600249 (or 600247 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 2004243820 is about 44768.7817569342. The cubic root of 2004243820 is about 1260.8115666844.

Adding to 2004243820 its reverse (283424002), we get a palindrome (2287667822).

The spelling of 2004243820 in words is "two billion, four million, two hundred forty-three thousand, eight hundred twenty".