382681666 has 8 divisors (see below), whose sum is σ = 580472460. Its totient is φ = 189190848.

The previous prime is 382681657. The next prime is 382681699. The reversal of 382681666 is 666186283.

It can be written as a sum of positive squares in 2 ways, for example, as 375003225 + 7678441 = 19365^2 + 2771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074771 + ... + 1075126.

Almost surely, 2^382681666 is an apocalyptic number.

382681666 is a deficient number, since it is larger than the sum of its proper divisors (197790794).

382681666 is a wasteful number, since it uses less digits than its factorization.

382681666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149988.

The product of its digits is 497664, while the sum is 46.

The square root of 382681666 is about 19562.2510463392. The cubic root of 382681666 is about 726.0154876321.

The spelling of 382681666 in words is "three hundred eighty-two million, six hundred eighty-one thousand, six hundred sixty-six".