394804 has 12 divisors (see below), whose sum is σ = 699300. Its totient is φ = 195008.

The previous prime is 394787. The next prime is 394811. The reversal of 394804 is 408493.

It can be written as a sum of positive squares in 2 ways, for example, as 32400 + 362404 = 180^2 + 602^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199 + ... + 910.

It is an arithmetic number, because the mean of its divisors is an integer number (58275).

2³⁹⁴⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

394804 is a deficient number, since it is larger than the sum of its proper divisors (304496).

394804 is a wasteful number, since it uses less digits than its factorization.

394804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 394804 is about 628.3343059232. The cubic root of 394804 is about 73.3602013578.

Subtracting 394804 from its reverse (408493), we obtain a square (13689 = 117²).

The spelling of 394804 in words is "three hundred ninety-four thousand, eight hundred four".