306226866 has 64 divisors (see below), whose sum is σ = 697245696. Its totient is φ = 88819200.

The previous prime is 306226801. The next prime is 306226873. The reversal of 306226866 is 668622603.

306226866 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197691 + ... + 199233.

It is an arithmetic number, because the mean of its divisors is an integer number (10894464).

Almost surely, 2^306226866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306226866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348622848).

306226866 is an abundant number, since it is smaller than the sum of its proper divisors (391018830).

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

306226866 is a wasteful number, since it uses less digits than its factorization.

306226866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 306226866 is about 17499.3390160886. The cubic root of 306226866 is about 674.0329020324.

The spelling of 306226866 in words is "three hundred six million, two hundred twenty-six thousand, eight hundred sixty-six".