305668918 has 16 divisors (see below), whose sum is σ = 472570560. Its totient is φ = 148205376.

The previous prime is 305668907. The next prime is 305668921. The reversal of 305668918 is 819866503.

305668918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 4671 + ... + 25162.

It is an arithmetic number, because the mean of its divisors is an integer number (29535660).

Almost surely, 2^305668918 is an apocalyptic number.

305668918 is a deficient number, since it is larger than the sum of its proper divisors (166901642).

305668918 is a wasteful number, since it uses less digits than its factorization.

305668918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29991.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 305668918 is about 17483.3897742972. The cubic root of 305668918 is about 673.6232885650.

The spelling of 305668918 in words is "three hundred five million, six hundred sixty-eight thousand, nine hundred eighteen".