489420 has 36 divisors (see below), whose sum is σ = 1485120. Its totient is φ = 130464.

The previous prime is 489409. The next prime is 489427. The reversal of 489420 is 24984.

It is a tau number, because it is divible by the number of its divisors (36).

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489420.

It is not an unprimeable number, because it can be changed into a prime (489427) by changing a digit.

489420 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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1180 + ... + 1539.

2⁴⁸⁹⁴²⁰ is an apocalyptic number.

It is an amenable number.

489420 is an abundant number, since it is smaller than the sum of its proper divisors (995700).

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

489420 is a wasteful number, since it uses less digits than its factorization.

489420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734 (or 2729 counting only the distinct ones).

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

The square root of 489420 is about 699.5855916184. The cubic root of 489420 is about 78.8062334561.

It can be divided in two parts, 489 and 420, that added together give a palindrome (909).

The spelling of 489420 in words is "four hundred eighty-nine thousand, four hundred twenty".