382666841 has 4 divisors (see below), whose sum is σ = 384122112. Its totient is φ = 381211572.

The previous prime is 382666829. The next prime is 382666853. The reversal of 382666841 is 148666283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148666283 = 157 ⋅946919.

It is an interprime number because it is at equal distance from previous prime (382666829) and next prime (382666853).

It is a cyclic number.

It is not a de Polignac number, because 382666841 - 2⁶ = 382666777 is a prime.

It is a super-2 number, since 2×382666841² = 292867822401838562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 382666792 and 382666801.

It is not an unprimeable number, because it can be changed into a prime (382666811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727241 + ... + 727766.

It is an arithmetic number, because the mean of its divisors is an integer number (96030528).

Almost surely, 2^382666841 is an apocalyptic number.

It is an amenable number.

382666841 is a deficient number, since it is larger than the sum of its proper divisors (1455271).

382666841 is a wasteful number, since it uses less digits than its factorization.

382666841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455270.

The product of its digits is 331776, while the sum is 44.

The square root of 382666841 is about 19561.8721241092. The cubic root of 382666841 is about 726.0061122865.

The spelling of 382666841 in words is "three hundred eighty-two million, six hundred sixty-six thousand, eight hundred forty-one".