2004644273 has 2 divisors, whose sum is σ = 2004644274. Its totient is φ = 2004644272.

The previous prime is 2004644269. The next prime is 2004644293. The reversal of 2004644273 is 3724464002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1549760689 + 454883584 = 39367^2 + 21328^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004644273 - 2² = 2004644269 is a prime.

It is a super-2 number, since 2×2004644273² = 8037197322543397058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2004644293) 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, 1002322136 + 1002322137.

It is an arithmetic number, because the mean of its divisors is an integer number (1002322137).

Almost surely, 2^2004644273 is an apocalyptic number.

It is an amenable number.

2004644273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004644273 is an equidigital number, since it uses as much as digits as its factorization.

2004644273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 2004644273 is about 44773.2539916410. The cubic root of 2004644273 is about 1260.8955322090.

The spelling of 2004644273 in words is "two billion, four million, six hundred forty-four thousand, two hundred seventy-three".