394028 has 6 divisors (see below), whose sum is σ = 689556. Its totient is φ = 197012.

The previous prime is 394019. The next prime is 394039. The reversal of 394028 is 820493.

394028 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 = 393988 and 394006.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 394028.

It is an unprimeable number.

394028 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 as a sum of consecutive naturals, namely, 49250 + ... + 49257.

It is an arithmetic number, because the mean of its divisors is an integer number (114926).

2³⁹⁴⁰²⁸ is an apocalyptic number.

It is an amenable number.

394028 is a deficient number, since it is larger than the sum of its proper divisors (295528).

394028 is a wasteful number, since it uses less digits than its factorization.

394028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98511 (or 98509 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 394028 is about 627.7164965173. The cubic root of 394028 is about 73.3121058854.

The spelling of 394028 in words is "three hundred ninety-four thousand, twenty-eight".