305302005 has 12 divisors (see below), whose sum is σ = 529190220. Its totient is φ = 162827712.

The previous prime is 305302003. The next prime is 305302007. The reversal of 305302005 is 500203503.

It is an interprime number because it is at equal distance from previous prime (305302003) and next prime (305302007).

It can be written as a sum of positive squares in 2 ways, for example, as 33942276 + 271359729 = 5826^2 + 16473^2 .

It is not a de Polignac number, because 305302005 - 2¹ = 305302003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305302001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3392200 + ... + 3392289.

It is an arithmetic number, because the mean of its divisors is an integer number (44099185).

Almost surely, 2^305302005 is an apocalyptic number.

It is an amenable number.

305302005 is a deficient number, since it is larger than the sum of its proper divisors (223888215).

305302005 is a wasteful number, since it uses less digits than its factorization.

305302005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784500 (or 6784497 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 305302005 is about 17472.8934352614. The cubic root of 305302005 is about 673.3536503090.

Adding to 305302005 its reverse (500203503), we get a palindrome (805505508).

It can be divided in two parts, 30 and 5302005, that added together give a palindrome (5302035).

The spelling of 305302005 in words is "three hundred five million, three hundred two thousand, five".