228844 has 24 divisors (see below), whose sum is σ = 499968. Its totient is φ = 89040.

The previous prime is 228841. The next prime is 228847. The reversal of 228844 is 448822.

228844 = 37³ + 38³ + ... + 40³.

It is an interprime number because it is at equal distance from previous prime (228841) and next prime (228847).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64 + ... + 679.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2²²⁸⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

228844 is an abundant number, since it is smaller than the sum of its proper divisors (271124).

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

228844 is a wasteful number, since it uses less digits than its factorization.

228844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 763 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 228844 is about 478.3764208236. The cubic root of 228844 is about 61.1664360935.

It can be divided in two parts, 2288 and 44, that added together give a palindrome (2332).

The spelling of 228844 in words is "two hundred twenty-eight thousand, eight hundred forty-four".