394542938 has 8 divisors (see below), whose sum is σ = 593999040. Its totient is φ = 196543260.

The previous prime is 394542913. The next prime is 394542947. The reversal of 394542938 is 839245493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 394542892 and 394542901.

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, 363428 + ... + 364511.

It is an arithmetic number, because the mean of its divisors is an integer number (74249880).

Almost surely, 2^394542938 is an apocalyptic number.

394542938 is a deficient number, since it is larger than the sum of its proper divisors (199456102).

394542938 is a wasteful number, since it uses less digits than its factorization.

394542938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728212.

The product of its digits is 933120, while the sum is 47.

The square root of 394542938 is about 19863.1049435883. The cubic root of 394542938 is about 733.4402811423.

The spelling of 394542938 in words is "three hundred ninety-four million, five hundred forty-two thousand, nine hundred thirty-eight".