394741284369 has 16 divisors (see below), whose sum is σ = 531777321600. Its totient is φ = 260433354240.

The previous prime is 394741284359. The next prime is 394741284391. The reversal of 394741284369 is 963482147493.

It is not a de Polignac number, because 394741284369 - 2¹¹ = 394741282321 is a prime.

It is a super-2 number, since 2×394741284369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394741284359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8532039 + ... + 8578179.

It is an arithmetic number, because the mean of its divisors is an integer number (33236082600).

Almost surely, 2^394741284369 is an apocalyptic number.

It is an amenable number.

394741284369 is a deficient number, since it is larger than the sum of its proper divisors (137036037231).

394741284369 is a wasteful number, since it uses less digits than its factorization.

394741284369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75640.

The product of its digits is 31352832, while the sum is 60.

The spelling of 394741284369 in words is "three hundred ninety-four billion, seven hundred forty-one million, two hundred eighty-four thousand, three hundred sixty-nine".