306268 has 12 divisors (see below), whose sum is σ = 559440. Its totient is φ = 146432.

The previous prime is 306263. The next prime is 306301. The reversal of 306268 is 862603.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573 + ... + 1756.

It is an arithmetic number, because the mean of its divisors is an integer number (46620).

2³⁰⁶²⁶⁸ is an apocalyptic number.

It is an amenable number.

306268 is a deficient number, since it is larger than the sum of its proper divisors (253172).

306268 is a wasteful number, since it uses less digits than its factorization.

306268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356 (or 3354 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 306268 is about 553.4148534328. The cubic root of 306268 is about 67.4063080560.

The spelling of 306268 in words is "three hundred six thousand, two hundred sixty-eight".