394694407142 has 16 divisors (see below), whose sum is σ = 676627160352. Its totient is φ = 169152701760.

The previous prime is 394694407141. The next prime is 394694407153. The reversal of 394694407142 is 241704496493.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394694407141) 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, 1883042 + ... + 2082122.

It is an arithmetic number, because the mean of its divisors is an integer number (42289197522).

Almost surely, 2^394694407142 is an apocalyptic number.

394694407142 is a deficient number, since it is larger than the sum of its proper divisors (281932753210).

394694407142 is a wasteful number, since it uses less digits than its factorization.

394694407142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340703.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 394694407142 in words is "three hundred ninety-four billion, six hundred ninety-four million, four hundred seven thousand, one hundred forty-two".