381206 has 16 divisors (see below), whose sum is σ = 664224. Its totient is φ = 160704.

The previous prime is 381181. The next prime is 381209. The reversal of 381206 is 602183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836 + ... + 1208.

It is an arithmetic number, because the mean of its divisors is an integer number (41514).

2³⁸¹²⁰⁶ is an apocalyptic number.

381206 is a deficient number, since it is larger than the sum of its proper divisors (283018).

381206 is a wasteful number, since it uses less digits than its factorization.

381206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 381206 is about 617.4188205748. The cubic root of 381206 is about 72.5081084867.

Adding to 381206 its reverse (602183), we get a palindrome (983389).

The spelling of 381206 in words is "three hundred eighty-one thousand, two hundred six".