394605 has 32 divisors (see below), whose sum is σ = 729600. Its totient is φ = 202176.

The previous prime is 394601. The next prime is 394619. The reversal of 394605 is 506493.

It is a happy number.

It is not a de Polignac number, because 394605 - 2² = 394601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4956 + ... + 5034.

It is an arithmetic number, because the mean of its divisors is an integer number (22800).

2³⁹⁴⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

394605 is a deficient number, since it is larger than the sum of its proper divisors (334995).

394605 is a wasteful number, since it uses less digits than its factorization.

394605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 394605 is about 628.1759307710. The cubic root of 394605 is about 73.3478736090.

It can be divided in two parts, 394 and 605, that added together give a palindrome (999).

The spelling of 394605 in words is "three hundred ninety-four thousand, six hundred five".