489280 has 56 divisors (see below), whose sum is σ = 1280160. Its totient is φ = 176640.

The previous prime is 489263. The next prime is 489283. The reversal of 489280 is 82984.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489283) by changing a digit.

489280 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 7 ways as a sum of consecutive naturals, for example, 3451 + ... + 3589.

It is an arithmetic number, because the mean of its divisors is an integer number (22860).

2⁴⁸⁹²⁸⁰ is an apocalyptic number.

489280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640080).

489280 is an abundant number, since it is smaller than the sum of its proper divisors (790880).

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

489280 is a wasteful number, since it uses less digits than its factorization.

489280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 489280 is about 699.4855252255. The cubic root of 489280 is about 78.7987184895.

The spelling of 489280 in words is "four hundred eighty-nine thousand, two hundred eighty".