305240306 has 24 divisors (see below), whose sum is σ = 547014636. Its totient is φ = 127280160.

The previous prime is 305240297. The next prime is 305240333. The reversal of 305240306 is 603042503.

It can be written as a sum of positive squares in 2 ways, for example, as 210975625 + 94264681 = 14525^2 + 9709^2 .

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 38465 + ... + 45716.

Almost surely, 2^305240306 is an apocalyptic number.

305240306 is a deficient number, since it is larger than the sum of its proper divisors (241774330).

305240306 is a wasteful number, since it uses less digits than its factorization.

305240306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84234 (or 84227 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 305240306 is about 17471.1277827163. The cubic root of 305240306 is about 673.3082875259.

Adding to 305240306 its reverse (603042503), we get a palindrome (908282809).

The spelling of 305240306 in words is "three hundred five million, two hundred forty thousand, three hundred six".