2004188399 has 2 divisors, whose sum is σ = 2004188400. Its totient is φ = 2004188398.

The previous prime is 2004188393. The next prime is 2004188441. The reversal of 2004188399 is 9938814002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2004188399 - 2²⁸ = 1735752943 is a prime.

It is a super-2 number, since 2×2004188399² = 8033542277372366402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004188393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002094199 + 1002094200.

It is an arithmetic number, because the mean of its divisors is an integer number (1002094200).

Almost surely, 2^2004188399 is an apocalyptic number.

2004188399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004188399 is an equidigital number, since it uses as much as digits as its factorization.

2004188399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2004188399 is about 44768.1627833888. The cubic root of 2004188399 is about 1260.7999453302.

The spelling of 2004188399 in words is "two billion, four million, one hundred eighty-eight thousand, three hundred ninety-nine".