394615316 has 24 divisors (see below), whose sum is σ = 710103240. Its totient is φ = 191797632.

The previous prime is 394615279. The next prime is 394615321. The reversal of 394615316 is 613516493.

It can be written as a sum of positive squares in 4 ways, for example, as 116726416 + 277888900 = 10804^2 + 16670^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 394615316.

It is a congruent number.

It is an unprimeable number.

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, 14570 + ... + 31646.

It is an arithmetic number, because the mean of its divisors is an integer number (29587635).

Almost surely, 2^394615316 is an apocalyptic number.

It is an amenable number.

394615316 is a deficient number, since it is larger than the sum of its proper divisors (315487924).

394615316 is a wasteful number, since it uses less digits than its factorization.

394615316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17243 (or 17241 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 394615316 is about 19864.9267806353. The cubic root of 394615316 is about 733.4851277144.

The spelling of 394615316 in words is "three hundred ninety-four million, six hundred fifteen thousand, three hundred sixteen".