228248 has 16 divisors (see below), whose sum is σ = 433680. Its totient is φ = 112608.

The previous prime is 228233. The next prime is 228251. The reversal of 228248 is 842822.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

228248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 686 + ... + 962.

It is an arithmetic number, because the mean of its divisors is an integer number (27105).

2²²⁸²⁴⁸ is an apocalyptic number.

It is an amenable number.

228248 is a deficient number, since it is larger than the sum of its proper divisors (205432).

228248 is a wasteful number, since it uses less digits than its factorization.

228248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 382 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

The square root of 228248 is about 477.7530742968. The cubic root of 228248 is about 61.1132894234.

The spelling of 228248 in words is "two hundred twenty-eight thousand, two hundred forty-eight".