394329388 has 24 divisors (see below), whose sum is σ = 725598720. Its totient is φ = 187146960.

The previous prime is 394329361. The next prime is 394329407. The reversal of 394329388 is 883923493.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4308 + ... + 28411.

It is an arithmetic number, because the mean of its divisors is an integer number (30233280).

Almost surely, 2^394329388 is an apocalyptic number.

It is an amenable number.

394329388 is a deficient number, since it is larger than the sum of its proper divisors (331269332).

394329388 is a wasteful number, since it uses less digits than its factorization.

394329388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32877 (or 32875 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 394329388 is about 19857.7286717288. The cubic root of 394329388 is about 733.3079301577.

The spelling of 394329388 in words is "three hundred ninety-four million, three hundred twenty-nine thousand, three hundred eighty-eight".