394181 has 8 divisors (see below), whose sum is σ = 411840. Its totient is φ = 376992.

The previous prime is 394169. The next prime is 394187. The reversal of 394181 is 181493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394181 - 2¹⁰ = 393157 is a prime.

It is a super-2 number, since 2×394181² = 310757321522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 394181.

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 394181.

It is not an unprimeable number, because it can be changed into a prime (394187) 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, 3776 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (51480).

2³⁹⁴¹⁸¹ is an apocalyptic number.

It is an amenable number.

394181 is a deficient number, since it is larger than the sum of its proper divisors (17659).

394181 is a wasteful number, since it uses less digits than its factorization.

394181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235.

The product of its digits is 864, while the sum is 26.

The square root of 394181 is about 627.8383549927. The cubic root of 394181 is about 73.3215936212.

It can be divided in two parts, 394 and 181, that added together give a palindrome (575).

The spelling of 394181 in words is "three hundred ninety-four thousand, one hundred eighty-one".