394722682 has 32 divisors (see below), whose sum is σ = 634334400. Its totient is φ = 183679488.

The previous prime is 394722613. The next prime is 394722689. The reversal of 394722682 is 286227493.

It is not an unprimeable number, because it can be changed into a prime (394722689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637369 + ... + 637987.

It is an arithmetic number, because the mean of its divisors is an integer number (19822950).

Almost surely, 2^394722682 is an apocalyptic number.

394722682 is a deficient number, since it is larger than the sum of its proper divisors (239611718).

394722682 is a wasteful number, since it uses less digits than its factorization.

394722682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910.

The product of its digits is 290304, while the sum is 43.

The square root of 394722682 is about 19867.6289979454. The cubic root of 394722682 is about 733.5516433140.

The spelling of 394722682 in words is "three hundred ninety-four million, seven hundred twenty-two thousand, six hundred eighty-two".