382009 has 4 divisors (see below), whose sum is σ = 387316. Its totient is φ = 376704.

The previous prime is 382003. The next prime is 382021. The reversal of 382009 is 900283.

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 308025 + 73984 = 555^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 382009 - 2³ = 382001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382001) 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, 2544 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (96829).

2³⁸²⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

382009 is a deficient number, since it is larger than the sum of its proper divisors (5307).

382009 is an equidigital number, since it uses as much as digits as its factorization.

382009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 382009 is about 618.0687664006. The cubic root of 382009 is about 72.5589848951.

The spelling of 382009 in words is "three hundred eighty-two thousand, nine".