228548 has 12 divisors (see below), whose sum is σ = 423612. Its totient is φ = 107520.

The previous prime is 228539. The next prime is 228559. The reversal of 228548 is 845822.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 53824 = 418^2 + 232^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 228548.

It is an unprimeable number.

228548 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, 1613 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (35301).

2²²⁸⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

228548 is a deficient number, since it is larger than the sum of its proper divisors (195064).

228548 is a wasteful number, since it uses less digits than its factorization.

228548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382 (or 3380 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 228548 is about 478.0669409194. The cubic root of 228548 is about 61.1400526520.

The spelling of 228548 in words is "two hundred twenty-eight thousand, five hundred forty-eight".