394047268 has 12 divisors (see below), whose sum is σ = 689785740. Its totient is φ = 196965632.

The previous prime is 394047259. The next prime is 394047287. The reversal of 394047268 is 862740493.

It can be written as a sum of positive squares in 2 ways, for example, as 102252544 + 291794724 = 10112^2 + 17082^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3180 + ... + 28252.

It is an arithmetic number, because the mean of its divisors is an integer number (57482145).

Almost surely, 2^394047268 is an apocalyptic number.

It is an amenable number.

394047268 is a deficient number, since it is larger than the sum of its proper divisors (295738472).

394047268 is a wasteful number, since it uses less digits than its factorization.

394047268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29006 (or 29004 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 394047268 is about 19850.6238692893. The cubic root of 394047268 is about 733.1330085513.

The spelling of 394047268 in words is "three hundred ninety-four million, forty-seven thousand, two hundred sixty-eight".