304305666 has 16 divisors (see below), whose sum is σ = 695555904. Its totient is φ = 86944464.

The previous prime is 304305647. The next prime is 304305679. The reversal of 304305666 is 666503403.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622645 + ... + 3622728.

It is an arithmetic number, because the mean of its divisors is an integer number (43472244).

Almost surely, 2^304305666 is an apocalyptic number.

304305666 is an abundant number, since it is smaller than the sum of its proper divisors (391250238).

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

304305666 is a wasteful number, since it uses less digits than its factorization.

304305666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245385.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 304305666 is about 17444.3591455806. The cubic root of 304305666 is about 672.6203658647.

The spelling of 304305666 in words is "three hundred four million, three hundred five thousand, six hundred sixty-six".