831857382 has 12 divisors (see below), whose sum is σ = 1802357700. Its totient is φ = 277285788.

The previous prime is 831857381. The next prime is 831857393. The reversal of 831857382 is 283758138.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831857381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23107132 + ... + 23107167.

It is an arithmetic number, because the mean of its divisors is an integer number (150196475).

Almost surely, 2^831857382 is an apocalyptic number.

831857382 is an abundant number, since it is smaller than the sum of its proper divisors (970500318).

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

831857382 is a wasteful number, since it uses less digits than its factorization.

831857382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46214307 (or 46214304 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 831857382 is about 28841.9379029912. The cubic root of 831857382 is about 940.4801312080.

The spelling of 831857382 in words is "eight hundred thirty-one million, eight hundred fifty-seven thousand, three hundred eighty-two".