394440716 has 24 divisors (see below), whose sum is σ = 714861840. Its totient is φ = 190209600.

The previous prime is 394440707. The next prime is 394440721. The reversal of 394440716 is 617044493.

It is a self number, because there is not a number n which added to its sum of digits gives 394440716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176486 + ... + 178706.

It is an arithmetic number, because the mean of its divisors is an integer number (29785910).

Almost surely, 2^394440716 is an apocalyptic number.

It is an amenable number.

394440716 is a deficient number, since it is larger than the sum of its proper divisors (320421124).

394440716 is a wasteful number, since it uses less digits than its factorization.

394440716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785 (or 3783 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 394440716 is about 19860.5316142343. The cubic root of 394440716 is about 733.3769334040.

The spelling of 394440716 in words is "three hundred ninety-four million, four hundred forty thousand, seven hundred sixteen".