386290 has 8 divisors (see below), whose sum is σ = 695340. Its totient is φ = 154512.

The previous prime is 386279. The next prime is 386297. The reversal of 386290 is 92683.

386290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 332929 + 53361 = 577^2 + 231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (386297) by changing a digit.

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, 19305 + ... + 19324.

2³⁸⁶²⁹⁰ is an apocalyptic number.

386290 is a deficient number, since it is larger than the sum of its proper divisors (309050).

386290 is a wasteful number, since it uses less digits than its factorization.

386290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38636.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 386290 is about 621.5223246192. The cubic root of 386290 is about 72.8290237693.

It can be divided in two parts, 386 and 290, that added together give a palindrome (676).

The spelling of 386290 in words is "three hundred eighty-six thousand, two hundred ninety".