228208 has 20 divisors (see below), whose sum is σ = 468720. Its totient is φ = 107264.

The previous prime is 228203. The next prime is 228211. The reversal of 228208 is 802822.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148 + ... + 691.

It is an arithmetic number, because the mean of its divisors is an integer number (23436).

2²²⁸²⁰⁸ is an apocalyptic number.

It is an amenable number.

228208 is an abundant number, since it is smaller than the sum of its proper divisors (240512).

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

228208 is a wasteful number, since it uses less digits than its factorization.

228208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 228208 is about 477.7112098329. The cubic root of 228208 is about 61.1097192214.

The spelling of 228208 in words is "two hundred twenty-eight thousand, two hundred eight".