394239268 has 6 divisors (see below), whose sum is σ = 689918726. Its totient is φ = 197119632.

The previous prime is 394239233. The next prime is 394239371. The reversal of 394239268 is 862932493.

It can be written as a sum of positive squares in only one way, i.e., 371409984 + 22829284 = 19272^2 + 4778^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49279905 + ... + 49279912.

Almost surely, 2^394239268 is an apocalyptic number.

It is an amenable number.

394239268 is a deficient number, since it is larger than the sum of its proper divisors (295679458).

394239268 is a wasteful number, since it uses less digits than its factorization.

394239268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98559821 (or 98559819 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 394239268 is about 19855.4594003765. The cubic root of 394239268 is about 733.2520625271.

The spelling of 394239268 in words is "three hundred ninety-four million, two hundred thirty-nine thousand, two hundred sixty-eight".