394228 has 12 divisors (see below), whose sum is σ = 700672. Its totient is φ = 194040.

The previous prime is 394223. The next prime is 394241. The reversal of 394228 is 822493.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 3⁵ + 9³ + 2⁵ + 4⁹ + 2¹⁷ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 394196 and 394205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394223) by changing a digit.

394228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468 + ... + 1003.

2³⁹⁴²²⁸ is an apocalyptic number.

It is an amenable number.

394228 is a deficient number, since it is larger than the sum of its proper divisors (306444).

394228 is a wasteful number, since it uses less digits than its factorization.

394228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1540 counting only the distinct ones).

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

The square root of 394228 is about 627.8757838936. The cubic root of 394228 is about 73.3245076615.

The spelling of 394228 in words is "three hundred ninety-four thousand, two hundred twenty-eight".