393964396 has 12 divisors (see below), whose sum is σ = 787928848. Its totient is φ = 168841872.

The previous prime is 393964381. The next prime is 393964421. The reversal of 393964396 is 693469393.

393964396 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7035051 + ... + 7035106.

Almost surely, 2^393964396 is an apocalyptic number.

It is an amenable number.

393964396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

393964396 is a wasteful number, since it uses less digits than its factorization.

393964396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14070168 (or 14070166 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 52.

The square root of 393964396 is about 19848.5363692137. The cubic root of 393964396 is about 733.0816099304.

The spelling of 393964396 in words is "three hundred ninety-three million, nine hundred sixty-four thousand, three hundred ninety-six".