380286 has 24 divisors (see below), whose sum is σ = 847704. Its totient is φ = 123120.

The previous prime is 380269. The next prime is 380287. The reversal of 380286 is 682083.

380286 is a `hidden beast` number, since 380 + 286 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380287) by changing a digit.

380286 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381 + ... + 951.

It is an arithmetic number, because the mean of its divisors is an integer number (35321).

2³⁸⁰²⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423852).

380286 is an abundant number, since it is smaller than the sum of its proper divisors (467418).

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

380286 is a wasteful number, since it uses less digits than its factorization.

380286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 380286 is about 616.6733332973. The cubic root of 380286 is about 72.4497313051.

It can be divided in two parts, 380 and 286, that added together give a palindrome (666).

The spelling of 380286 in words is "three hundred eighty thousand, two hundred eighty-six".