394733668 has 24 divisors (see below), whose sum is σ = 789917184. Its totient is φ = 169075200.

The previous prime is 394733663. The next prime is 394733681. The reversal of 394733668 is 866337493.

It is not an unprimeable number, because it can be changed into a prime (394733663) 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, 69828 + ... + 75268.

It is an arithmetic number, because the mean of its divisors is an integer number (32913216).

Almost surely, 2^394733668 is an apocalyptic number.

It is an amenable number.

394733668 is an abundant number, since it is smaller than the sum of its proper divisors (395183516).

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

394733668 is a wasteful number, since it uses less digits than its factorization.

394733668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8043 (or 8041 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 49.

The square root of 394733668 is about 19867.9054759177. The cubic root of 394733668 is about 733.5584487025.

The spelling of 394733668 in words is "three hundred ninety-four million, seven hundred thirty-three thousand, six hundred sixty-eight".