393986483982 has 96 divisors (see below), whose sum is σ = 1051182595008. Its totient is φ = 103853933568.

The previous prime is 393986483971. The next prime is 393986484019. The reversal of 393986483982 is 289384689393.

393986483982 is a `hidden beast` number, since 3 + 93 + 98 + 64 + 8 + 398 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 393986483982.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3104038 + ... + 3228470.

It is an arithmetic number, because the mean of its divisors is an integer number (10949818698).

Almost surely, 2^393986483982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 393986483982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525591297504).

393986483982 is an abundant number, since it is smaller than the sum of its proper divisors (657196111026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

393986483982 is a wasteful number, since it uses less digits than its factorization.

393986483982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126394 (or 126391 counting only the distinct ones).

The product of its digits is 483729408, while the sum is 72.

The spelling of 393986483982 in words is "three hundred ninety-three billion, nine hundred eighty-six million, four hundred eighty-three thousand, nine hundred eighty-two".