306308 has 12 divisors (see below), whose sum is σ = 543900. Its totient is φ = 150912.

The previous prime is 306301. The next prime is 306329. The reversal of 306308 is 803603.

306308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 232324 + 73984 = 482^2 + 272^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 306308.

It is not an unprimeable number, because it can be changed into a prime (306301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 816.

It is an arithmetic number, because the mean of its divisors is an integer number (45325).

2³⁰⁶³⁰⁸ is an apocalyptic number.

It is an amenable number.

306308 is a deficient number, since it is larger than the sum of its proper divisors (237592).

306308 is a wasteful number, since it uses less digits than its factorization.

306308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 306308 is about 553.4509915069. The cubic root of 306308 is about 67.4092424522.

The spelling of 306308 in words is "three hundred six thousand, three hundred eight".