306606 has 16 divisors (see below), whose sum is σ = 619344. Its totient is φ = 101184.

The previous prime is 306589. The next prime is 306643. The reversal of 306606 is 606603.

306606 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636 + ... + 1008.

It is an arithmetic number, because the mean of its divisors is an integer number (38709).

2³⁰⁶⁶⁰⁶ is an apocalyptic number.

306606 is an abundant number, since it is smaller than the sum of its proper divisors (312738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306606 is a wasteful number, since it uses less digits than its factorization.

306606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 306606 is about 553.7201459221. The cubic root of 306606 is about 67.4310956668.

The spelling of 306606 in words is "three hundred six thousand, six hundred six".