168305306 has 32 divisors (see below), whose sum is σ = 298650240. Its totient is φ = 70386624.

The previous prime is 168305279. The next prime is 168305317. The reversal of 168305306 is 603503861.

168305306 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3956 + ... + 18768.

It is an arithmetic number, because the mean of its divisors is an integer number (9332820).

Almost surely, 2^168305306 is an apocalyptic number.

168305306 is a deficient number, since it is larger than the sum of its proper divisors (130344934).

168305306 is a wasteful number, since it uses less digits than its factorization.

168305306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14870.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 168305306 is about 12973.2534855371. The cubic root of 168305306 is about 552.1188854241.

The spelling of 168305306 in words is "one hundred sixty-eight million, three hundred five thousand, three hundred six".