394444441942 has 16 divisors (see below), whose sum is σ = 598968664560. Its totient is φ = 194789597472.

The previous prime is 394444441939. The next prime is 394444441943. The reversal of 394444441942 is 249144444493.

It is a self number, because there is not a number n which added to its sum of digits gives 394444441942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394444441943) 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, 233368 + ... + 918340.

It is an arithmetic number, because the mean of its divisors is an integer number (37435541535).

Almost surely, 2^394444441942 is an apocalyptic number.

394444441942 is a deficient number, since it is larger than the sum of its proper divisors (204524222618).

394444441942 is a wasteful number, since it uses less digits than its factorization.

394444441942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688527.

The product of its digits is 7962624, while the sum is 52.

The spelling of 394444441942 in words is "three hundred ninety-four billion, four hundred forty-four million, four hundred forty-one thousand, nine hundred forty-two".