394668700806 has 8 divisors (see below), whose sum is σ = 789337401624. Its totient is φ = 131556233600.

The previous prime is 394668700801. The next prime is 394668700819. The reversal of 394668700806 is 608007866493.

It is a happy number.

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

394668700806 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394668700801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32889058395 + ... + 32889058406.

It is an arithmetic number, because the mean of its divisors is an integer number (98667175203).

Almost surely, 2^394668700806 is an apocalyptic number.

394668700806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

394668700806 is a wasteful number, since it uses less digits than its factorization.

394668700806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65778116806.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 394668700806 in words is "three hundred ninety-four billion, six hundred sixty-eight million, seven hundred thousand, eight hundred six".