404402003 has 2 divisors, whose sum is σ = 404402004. Its totient is φ = 404402002.

The previous prime is 404401997. The next prime is 404402039. The reversal of 404402003 is 300204404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404402003 - 2¹⁰ = 404400979 is a prime.

It is not a weakly prime, because it can be changed into another prime (404402083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202201001 + 202201002.

It is an arithmetic number, because the mean of its divisors is an integer number (202201002).

Almost surely, 2^404402003 is an apocalyptic number.

404402003 is a deficient number, since it is larger than the sum of its proper divisors (1).

404402003 is an equidigital number, since it uses as much as digits as its factorization.

404402003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 404402003 is about 20109.7489541764. The cubic root of 404402003 is about 739.4992978852.

Adding to 404402003 its reverse (300204404), we get a palindrome (704606407).

The spelling of 404402003 in words is "four hundred four million, four hundred two thousand, three".