394340 has 12 divisors (see below), whose sum is σ = 828156. Its totient is φ = 157728.

The previous prime is 394327. The next prime is 394357. The reversal of 394340 is 43493.

It can be written as a sum of positive squares in 2 ways, for example, as 73984 + 320356 = 272^2 + 566^2 .

It is an unprimeable number.

394340 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, 9839 + ... + 9878.

It is an arithmetic number, because the mean of its divisors is an integer number (69013).

2³⁹⁴³⁴⁰ is an apocalyptic number.

It is an amenable number.

394340 is an abundant number, since it is smaller than the sum of its proper divisors (433816).

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

394340 is a wasteful number, since it uses less digits than its factorization.

394340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19726 (or 19724 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 394340 is about 627.9649671757. The cubic root of 394340 is about 73.3314508240.

The spelling of 394340 in words is "three hundred ninety-four thousand, three hundred forty".