394284 has 48 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 114240.

The previous prime is 394271. The next prime is 394291. The reversal of 394284 is 482493.

It is a happy number.

It is a d-powerful number, because it can be written as 3³ + 9 + 2¹⁷ + 4⁵ + 8 + 4⁹ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 394284.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3777 + ... + 3879.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2³⁹⁴²⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524160).

394284 is an abundant number, since it is smaller than the sum of its proper divisors (654036).

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

394284 is a wasteful number, since it uses less digits than its factorization.

394284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 148 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 394284 is about 627.9203771180. The cubic root of 394284 is about 73.3279794071.

Subtracting 394284 from its reverse (482493), we obtain a square (88209 = 297²).

The spelling of 394284 in words is "three hundred ninety-four thousand, two hundred eighty-four".