304343073 has 6 divisors (see below), whose sum is σ = 439606674. Its totient is φ = 202895376.

The previous prime is 304343071. The next prime is 304343077. The reversal of 304343073 is 370343403.

It can be written as a sum of positive squares in only one way, i.e., 255104784 + 49238289 = 15972^2 + 7017^2 .

It is not a de Polignac number, because 304343073 - 2¹ = 304343071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304343071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16907940 + ... + 16907957.

It is an arithmetic number, because the mean of its divisors is an integer number (73267779).

Almost surely, 2^304343073 is an apocalyptic number.

It is an amenable number.

304343073 is a deficient number, since it is larger than the sum of its proper divisors (135263601).

304343073 is a wasteful number, since it uses less digits than its factorization.

304343073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33815903 (or 33815900 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 27.

The square root of 304343073 is about 17445.4312930349. The cubic root of 304343073 is about 672.6479255215.

Adding to 304343073 its reverse (370343403), we get a palindrome (674686476).

The spelling of 304343073 in words is "three hundred four million, three hundred forty-three thousand, seventy-three".