394430384 has 20 divisors (see below), whose sum is σ = 764786616. Its totient is φ = 197066112.

The previous prime is 394430369. The next prime is 394430419. The reversal of 394430384 is 483034493.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14327 + ... + 31529.

Almost surely, 2^394430384 is an apocalyptic number.

It is an amenable number.

394430384 is a deficient number, since it is larger than the sum of its proper divisors (370356232).

394430384 is a wasteful number, since it uses less digits than its factorization.

394430384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18644 (or 18638 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 394430384 is about 19860.2714986477. The cubic root of 394430384 is about 733.3705299773.

The spelling of 394430384 in words is "three hundred ninety-four million, four hundred thirty thousand, three hundred eighty-four".