489384 has 48 divisors (see below), whose sum is σ = 1516320. Its totient is φ = 139680.

The previous prime is 489367. The next prime is 489389. The reversal of 489384 is 483984.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (489389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (31590).

2⁴⁸⁹³⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758160).

489384 is an abundant number, since it is smaller than the sum of its proper divisors (1026936).

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

489384 is a wasteful number, since it uses less digits than its factorization.

489384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 983 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 489384 is about 699.5598616273. The cubic root of 489384 is about 78.8043011730.

The spelling of 489384 in words is "four hundred eighty-nine thousand, three hundred eighty-four".