305940668 has 24 divisors (see below), whose sum is σ = 588282240. Its totient is φ = 138060720.

The previous prime is 305940667. The next prime is 305940689. The reversal of 305940668 is 866049503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305940667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18896 + ... + 31127.

It is an arithmetic number, because the mean of its divisors is an integer number (24511760).

Almost surely, 2^305940668 is an apocalyptic number.

It is an amenable number.

305940668 is a deficient number, since it is larger than the sum of its proper divisors (282341572).

305940668 is a wasteful number, since it uses less digits than its factorization.

305940668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50177 (or 50175 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 305940668 is about 17491.1597099792. The cubic root of 305940668 is about 673.8228540607.

The spelling of 305940668 in words is "three hundred five million, nine hundred forty thousand, six hundred sixty-eight".