394581606 has 16 divisors (see below), whose sum is σ = 823474944. Its totient is φ = 125808584.

The previous prime is 394581601. The next prime is 394581619. The reversal of 394581606 is 606185493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394581601) 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, 1429506 + ... + 1429781.

It is an arithmetic number, because the mean of its divisors is an integer number (51467184).

Almost surely, 2^394581606 is an apocalyptic number.

394581606 is an abundant number, since it is smaller than the sum of its proper divisors (428893338).

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

394581606 is a wasteful number, since it uses less digits than its factorization.

394581606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859315.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 394581606 is about 19864.0782821655. The cubic root of 394581606 is about 733.4642411389.

The spelling of 394581606 in words is "three hundred ninety-four million, five hundred eighty-one thousand, six hundred six".