306806622 has 8 divisors (see below), whose sum is σ = 613613256. Its totient is φ = 102268872.

The previous prime is 306806611. The next prime is 306806641. The reversal of 306806622 is 226608603.

It is a sphenic number, since it is the product of 3 distinct primes.

306806622 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25567213 + ... + 25567224.

It is an arithmetic number, because the mean of its divisors is an integer number (76701657).

Almost surely, 2^306806622 is an apocalyptic number.

306806622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

306806622 is a wasteful number, since it uses less digits than its factorization.

306806622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51134442.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 306806622 is about 17515.8962659637. The cubic root of 306806622 is about 674.4579989280.

The spelling of 306806622 in words is "three hundred six million, eight hundred six thousand, six hundred twenty-two".