382805 has 4 divisors (see below), whose sum is σ = 459372. Its totient is φ = 306240.

The previous prime is 382801. The next prime is 382807. The reversal of 382805 is 508283.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 165649 + 217156 = 407^2 + 466^2 .

It is not a de Polignac number, because 382805 - 2² = 382801 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382801) 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, 38276 + ... + 38285.

It is an arithmetic number, because the mean of its divisors is an integer number (114843).

2³⁸²⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

382805 is a deficient number, since it is larger than the sum of its proper divisors (76567).

382805 is an equidigital number, since it uses as much as digits as its factorization.

382805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76566.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 382805 is about 618.7123725933. The cubic root of 382805 is about 72.6093474799.

The spelling of 382805 in words is "three hundred eighty-two thousand, eight hundred five".