394828 has 24 divisors (see below), whose sum is σ = 806400. Its totient is φ = 165648.

The previous prime is 394819. The next prime is 394829. The reversal of 394828 is 828493.

394828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 394793 and 394802.

It is not an unprimeable number, because it can be changed into a prime (394829) by changing a digit.

394828 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 1533 + ... + 1771.

It is an arithmetic number, because the mean of its divisors is an integer number (33600).

2³⁹⁴⁸²⁸ is an apocalyptic number.

It is an amenable number.

394828 is an abundant number, since it is smaller than the sum of its proper divisors (411572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394828 is a wasteful number, since it uses less digits than its factorization.

394828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 307 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 394828 is about 628.3534037466. The cubic root of 394828 is about 73.3616878415.

The spelling of 394828 in words is "three hundred ninety-four thousand, eight hundred twenty-eight".