386406 has 12 divisors (see below), whose sum is σ = 837252. Its totient is φ = 128796.

The previous prime is 386401. The next prime is 386411. The reversal of 386406 is 604683.

It is an interprime number because it is at equal distance from previous prime (386401) and next prime (386411).

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 386406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386401) 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 5 ways as a sum of consecutive naturals, for example, 10716 + ... + 10751.

It is an arithmetic number, because the mean of its divisors is an integer number (69771).

2³⁸⁶⁴⁰⁶ is an apocalyptic number.

386406 is an abundant number, since it is smaller than the sum of its proper divisors (450846).

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

386406 is a wasteful number, since it uses less digits than its factorization.

386406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21475 (or 21472 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 386406 is about 621.6156368690. The cubic root of 386406 is about 72.8363130435.

The spelling of 386406 in words is "three hundred eighty-six thousand, four hundred six".