489240 has 80 divisors (see below), whose sum is σ = 1655280. Its totient is φ = 129600.

The previous prime is 489239. The next prime is 489241. The reversal of 489240 is 42984.

It is an interprime number because it is at equal distance from previous prime (489239) and next prime (489241).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489241) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3165 + ... + 3315.

It is an arithmetic number, because the mean of its divisors is an integer number (20691).

2⁴⁸⁹²⁴⁰ is an apocalyptic number.

489240 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 489240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827640).

489240 is an abundant number, since it is smaller than the sum of its proper divisors (1166040).

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

489240 is a wasteful number, since it uses less digits than its factorization.

489240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 489240 is about 699.4569321981. The cubic root of 489240 is about 78.7965710929.

It can be divided in two parts, 489 and 240, that added together give a 6-th power (729 = 3⁶).

The spelling of 489240 in words is "four hundred eighty-nine thousand, two hundred forty".