305066866 has 8 divisors (see below), whose sum is σ = 492800364. Its totient is φ = 140800080.

The previous prime is 305066851. The next prime is 305066873. The reversal of 305066866 is 668660503.

It can be written as a sum of positive squares in 2 ways, for example, as 291897225 + 13169641 = 17085^2 + 3629^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5866645 + ... + 5866696.

Almost surely, 2^305066866 is an apocalyptic number.

305066866 is a deficient number, since it is larger than the sum of its proper divisors (187733498).

305066866 is a wasteful number, since it uses less digits than its factorization.

305066866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11733356.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 305066866 is about 17466.1634596725. The cubic root of 305066866 is about 673.1807369674.

The spelling of 305066866 in words is "three hundred five million, sixty-six thousand, eight hundred sixty-six".