304320005 has 16 divisors (see below), whose sum is σ = 409152384. Its totient is φ = 215340480.

The previous prime is 304320001. The next prime is 304320007. The reversal of 304320005 is 500023403.

It is not a de Polignac number, because 304320005 - 2² = 304320001 is a prime.

It is a super-2 number, since 2×304320005² = 185221330886400050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304320001) 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 15 ways as a sum of consecutive naturals, for example, 72737 + ... + 76806.

It is an arithmetic number, because the mean of its divisors is an integer number (25572024).

Almost surely, 2^304320005 is an apocalyptic number.

It is an amenable number.

304320005 is a deficient number, since it is larger than the sum of its proper divisors (104832379).

304320005 is a wasteful number, since it uses less digits than its factorization.

304320005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149596.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 304320005 is about 17444.7701331946. The cubic root of 304320005 is about 672.6309304089.

Adding to 304320005 its reverse (500023403), we get a palindrome (804343408).

The spelling of 304320005 in words is "three hundred four million, three hundred twenty thousand, five".