228424 has 16 divisors (see below), whose sum is σ = 489600. Its totient is φ = 97872.

The previous prime is 228421. The next prime is 228427. The reversal of 228424 is 424822.

228424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228421) and next prime (228427).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 228395 and 228404.

It is not an unprimeable number, because it can be changed into a prime (228421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1984 + ... + 2095.

It is an arithmetic number, because the mean of its divisors is an integer number (30600).

2²²⁸⁴²⁴ is an apocalyptic number.

It is an amenable number.

228424 is an abundant number, since it is smaller than the sum of its proper divisors (261176).

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

228424 is a wasteful number, since it uses less digits than its factorization.

228424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092 (or 4088 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 228424 is about 477.9372343729. The cubic root of 228424 is about 61.1289933588.

The spelling of 228424 in words is "two hundred twenty-eight thousand, four hundred twenty-four".