393394244 has 12 divisors (see below), whose sum is σ = 698136768. Its totient is φ = 193926600.

The previous prime is 393394219. The next prime is 393394289. The reversal of 393394244 is 442493393.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692312 + ... + 692879.

It is an arithmetic number, because the mean of its divisors is an integer number (58178064).

Almost surely, 2^393394244 is an apocalyptic number.

It is an amenable number.

393394244 is a deficient number, since it is larger than the sum of its proper divisors (304742524).

393394244 is a wasteful number, since it uses less digits than its factorization.

393394244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385266 (or 1385264 counting only the distinct ones).

The product of its digits is 279936, while the sum is 41.

The square root of 393394244 is about 19834.1685986582. The cubic root of 393394244 is about 732.7277964533.

The spelling of 393394244 in words is "three hundred ninety-three million, three hundred ninety-four thousand, two hundred forty-four".