394229396842 has 16 divisors (see below), whose sum is σ = 599000435712. Its totient is φ = 194573197440.

The previous prime is 394229396819. The next prime is 394229396843. The reversal of 394229396842 is 248693922493.

It is not an unprimeable number, because it can be changed into a prime (394229396843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2578584 + ... + 2727187.

It is an arithmetic number, because the mean of its divisors is an integer number (37437527232).

Almost surely, 2^394229396842 is an apocalyptic number.

394229396842 is a deficient number, since it is larger than the sum of its proper divisors (204771038870).

394229396842 is a wasteful number, since it uses less digits than its factorization.

394229396842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306253.

The product of its digits is 40310784, while the sum is 61.

The spelling of 394229396842 in words is "three hundred ninety-four billion, two hundred twenty-nine million, three hundred ninety-six thousand, eight hundred forty-two".