489228 has 24 divisors (see below), whose sum is σ = 1162560. Its totient is φ = 160080.

The previous prime is 489217. The next prime is 489239. The reversal of 489228 is 822984.

It is an interprime number because it is at equal distance from previous prime (489217) and next prime (489239).

It is a super-4 number, since 4×489228⁴ (a number of 24 digits) contains 4444 as substring.

It is an unprimeable number.

489228 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 7 ways as a sum of consecutive naturals, for example, 363 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (48440).

2⁴⁸⁹²²⁸ is an apocalyptic number.

It is an amenable number.

489228 is an abundant number, since it is smaller than the sum of its proper divisors (673332).

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

489228 is a wasteful number, since it uses less digits than its factorization.

489228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 755 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 489228 is about 699.4483540620. The cubic root of 489228 is about 78.7959268511.

It can be divided in two parts, 489 and 228, that added together give a palindrome (717).

The spelling of 489228 in words is "four hundred eighty-nine thousand, two hundred twenty-eight".