380321 has 4 divisors (see below), whose sum is σ = 381972. Its totient is φ = 378672.

The previous prime is 380311. The next prime is 380327. The reversal of 380321 is 123083.

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 250000 + 130321 = 500^2 + 361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 380321.

It is not an unprimeable number, because it can be changed into a prime (380327) 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, 410 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (95493).

2³⁸⁰³²¹ is an apocalyptic number.

It is an amenable number.

380321 is a deficient number, since it is larger than the sum of its proper divisors (1651).

380321 is a wasteful number, since it uses less digits than its factorization.

380321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 380321 is about 616.7017107160. The cubic root of 380321 is about 72.4519538979.

The spelling of 380321 in words is "three hundred eighty thousand, three hundred twenty-one".