393385712382 has 48 divisors (see below), whose sum is σ = 966210532560. Its totient is φ = 114671137536.

The previous prime is 393385712347. The next prime is 393385712387. The reversal of 393385712382 is 283217583393.

393385712382 is a `hidden beast` number, since 3 + 9 + 3 + 38 + 571 + 2 + 38 + 2 = 666.

It is a super-2 number, since 2×393385712382² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393385712387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44235963 + ... + 44244854.

It is an arithmetic number, because the mean of its divisors is an integer number (20129386095).

Almost surely, 2^393385712382 is an apocalyptic number.

393385712382 is an abundant number, since it is smaller than the sum of its proper divisors (572824820178).

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

393385712382 is a wasteful number, since it uses less digits than its factorization.

393385712382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88480857 (or 88480854 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 393385712382 in words is "three hundred ninety-three billion, three hundred eighty-five million, seven hundred twelve thousand, three hundred eighty-two".