394603936 has 24 divisors (see below), whose sum is σ = 777837060. Its totient is φ = 197058048.

The previous prime is 394603931. The next prime is 394603943. The reversal of 394603936 is 639306493.

It can be written as a sum of positive squares in 2 ways, for example, as 386515600 + 8088336 = 19660^2 + 2844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 394603892 and 394603901.

It is not an unprimeable number, because it can be changed into a prime (394603931) by changing a digit.

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, 20230 + ... + 34618.

Almost surely, 2^394603936 is an apocalyptic number.

It is an amenable number.

394603936 is a deficient number, since it is larger than the sum of its proper divisors (383233124).

394603936 is a wasteful number, since it uses less digits than its factorization.

394603936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256 (or 15248 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 43.

The square root of 394603936 is about 19864.6403440888. The cubic root of 394603936 is about 733.4780768468.

The spelling of 394603936 in words is "three hundred ninety-four million, six hundred three thousand, nine hundred thirty-six".