394444441941 has 48 divisors (see below), whose sum is σ = 594144196800. Its totient is φ = 232425262080.

The previous prime is 394444441939. The next prime is 394444441943. The reversal of 394444441941 is 149144444493.

It is an interprime number because it is at equal distance from previous prime (394444441939) and next prime (394444441943).

It is not a de Polignac number, because 394444441941 - 2¹ = 394444441939 is a prime.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 19585765 + ... + 19605893.

It is an arithmetic number, because the mean of its divisors is an integer number (12378004100).

Almost surely, 2^394444441941 is an apocalyptic number.

It is an amenable number.

394444441941 is a deficient number, since it is larger than the sum of its proper divisors (199699754859).

394444441941 is a wasteful number, since it uses less digits than its factorization.

394444441941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21650 (or 21639 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 51.

The spelling of 394444441941 in words is "three hundred ninety-four billion, four hundred forty-four million, four hundred forty-one thousand, nine hundred forty-one".