382820 has 12 divisors (see below), whose sum is σ = 803964. Its totient is φ = 153120.

The previous prime is 382813. The next prime is 382843. The reversal of 382820 is 28283.

It can be written as a sum of positive squares in 2 ways, for example, as 173056 + 209764 = 416^2 + 458^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 382820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9551 + ... + 9590.

It is an arithmetic number, because the mean of its divisors is an integer number (66997).

2³⁸²⁸²⁰ is an apocalyptic number.

It is an amenable number.

382820 is an abundant number, since it is smaller than the sum of its proper divisors (421144).

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

382820 is a wasteful number, since it uses less digits than its factorization.

382820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150 (or 19148 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 382820 is about 618.7244944238. The cubic root of 382820 is about 72.6102958530.

The spelling of 382820 in words is "three hundred eighty-two thousand, eight hundred twenty".