386842 has 8 divisors (see below), whose sum is σ = 585216. Its totient is φ = 191772.

The previous prime is 386839. The next prime is 386851. The reversal of 386842 is 248683.

It is a happy number.

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

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, 508 + ... + 1015.

It is an arithmetic number, because the mean of its divisors is an integer number (73152).

2³⁸⁶⁸⁴² is an apocalyptic number.

386842 is the 508-th pentagonal number.

386842 is a deficient number, since it is larger than the sum of its proper divisors (198374).

386842 is a wasteful number, since it uses less digits than its factorization.

386842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652.

The product of its digits is 9216, while the sum is 31.

The square root of 386842 is about 621.9662370258. The cubic root of 386842 is about 72.8636976216.

The spelling of 386842 in words is "three hundred eighty-six thousand, eight hundred forty-two".