394520 has 32 divisors (see below), whose sum is σ = 1015200. Its totient is φ = 135168.

The previous prime is 394507. The next prime is 394523. The reversal of 394520 is 25493.

394520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425 + ... + 984.

It is an arithmetic number, because the mean of its divisors is an integer number (31725).

2³⁹⁴⁵²⁰ is an apocalyptic number.

It is an amenable number.

394520 is an abundant number, since it is smaller than the sum of its proper divisors (620680).

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

394520 is a wasteful number, since it uses less digits than its factorization.

394520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 394520 is about 628.1082709215. The cubic root of 394520 is about 73.3426067244.

The spelling of 394520 in words is "three hundred ninety-four thousand, five hundred twenty".