382641857 has 6 divisors (see below), whose sum is σ = 414340182. Its totient is φ = 353207712.

The previous prime is 382641851. The next prime is 382641859. The reversal of 382641857 is 758146283.

It can be written as a sum of positive squares in 3 ways, for example, as 15689521 + 366952336 = 3961^2 + 19156^2 .

It is not a de Polignac number, because 382641857 - 2¹⁰ = 382640833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382641851) 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, 1131908 + ... + 1132245.

It is an arithmetic number, because the mean of its divisors is an integer number (69056697).

Almost surely, 2^382641857 is an apocalyptic number.

It is an amenable number.

382641857 is a deficient number, since it is larger than the sum of its proper divisors (31698325).

382641857 is a wasteful number, since it uses less digits than its factorization.

382641857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264179 (or 2264166 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 382641857 is about 19561.2335244994. The cubic root of 382641857 is about 725.9903118308.

The spelling of 382641857 in words is "three hundred eighty-two million, six hundred forty-one thousand, eight hundred fifty-seven".