228206 has 24 divisors (see below), whose sum is σ = 402192. Its totient is φ = 96800.

The previous prime is 228203. The next prime is 228211. The reversal of 228206 is 602822.

228206 = 139² + 140² + ... + 149².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228203) by changing a digit.

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, 5546 + ... + 5586.

It is an arithmetic number, because the mean of its divisors is an integer number (16758).

2²²⁸²⁰⁶ is an apocalyptic number.

228206 is a deficient number, since it is larger than the sum of its proper divisors (173986).

228206 is a wasteful number, since it uses less digits than its factorization.

228206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 228206 is about 477.7091165134. The cubic root of 228206 is about 61.1095407004.

It can be divided in two parts, 228 and 206, that added together give a palindrome (434).

The spelling of 228206 in words is "two hundred twenty-eight thousand, two hundred six".