394180 has 12 divisors (see below), whose sum is σ = 827820. Its totient is φ = 157664.

The previous prime is 394169. The next prime is 394187. The reversal of 394180 is 81493.

It can be written as a sum of positive squares in 2 ways, for example, as 171396 + 222784 = 414^2 + 472^2 .

It is not an unprimeable number, because it can be changed into a prime (394187) by changing a digit.

394180 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 in 3 ways as a sum of consecutive naturals, for example, 9835 + ... + 9874.

It is an arithmetic number, because the mean of its divisors is an integer number (68985).

2³⁹⁴¹⁸⁰ is an apocalyptic number.

It is an amenable number.

394180 is an abundant number, since it is smaller than the sum of its proper divisors (433640).

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

394180 is a wasteful number, since it uses less digits than its factorization.

394180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19718 (or 19716 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 394180 is about 627.8375586089. The cubic root of 394180 is about 73.3215316178.

The spelling of 394180 in words is "three hundred ninety-four thousand, one hundred eighty".