408228 has 12 divisors (see below), whose sum is σ = 952560. Its totient is φ = 136072.

The previous prime is 408223. The next prime is 408229. The reversal of 408228 is 822804.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 408198 and 408207.

It is not an unprimeable number, because it can be changed into a prime (408223) by changing a digit.

408228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16998 + ... + 17021.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁴⁰⁸²²⁸ is an apocalyptic number.

It is an amenable number.

408228 is an abundant number, since it is smaller than the sum of its proper divisors (544332).

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

408228 is a wasteful number, since it uses less digits than its factorization.

408228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34026 (or 34024 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 408228 is about 638.9272259029. The cubic root of 408228 is about 74.1824085314.

It can be divided in two parts, 408 and 228, that added together give a palindrome (636).

The spelling of 408228 in words is "four hundred eight thousand, two hundred twenty-eight".