330442009 has 2 divisors, whose sum is σ = 330442010. Its totient is φ = 330442008.

The previous prime is 330441997. The next prime is 330442159. The reversal of 330442009 is 900244033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220611609 + 109830400 = 14853^2 + 10480^2 .

It is a cyclic number.

It is not a de Polignac number, because 330442009 - 2⁹ = 330441497 is a prime.

It is not a weakly prime, because it can be changed into another prime (330442309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165221004 + 165221005.

It is an arithmetic number, because the mean of its divisors is an integer number (165221005).

Almost surely, 2^330442009 is an apocalyptic number.

It is an amenable number.

330442009 is a deficient number, since it is larger than the sum of its proper divisors (1).

330442009 is an equidigital number, since it uses as much as digits as its factorization.

330442009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 330442009 is about 18178.0639508172. The cubic root of 330442009 is about 691.3507176006.

It can be divided in two parts, 33044 and 2009, that added together give a palindrome (35053).

The spelling of 330442009 in words is "three hundred thirty million, four hundred forty-two thousand, nine".