489472 has 24 divisors (see below), whose sum is σ = 982800. Its totient is φ = 243712.

The previous prime is 489457. The next prime is 489479. The reversal of 489472 is 274984.

It is a happy number.

489472 is nontrivially palindromic in base 7.

It is a d-powerful number, because it can be written as 4⁶ + 8⁵ + 4⁹ + 9⁵ + 7³ + 2¹⁷ .

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489479) by changing a digit.

489472 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1929 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2⁴⁸⁹⁴⁷² 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 489472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491400).

489472 is an abundant number, since it is smaller than the sum of its proper divisors (493328).

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

489472 is an equidigital number, since it uses as much as digits as its factorization.

489472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 241 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 489472 is about 699.6227554904. The cubic root of 489472 is about 78.8090243644.

Subtracting from 489472 its product of digits (16128), we obtain a square (473344 = 688²).

It can be divided in two parts, 489 and 472, that added together give a square (961 = 31²).

The spelling of 489472 in words is "four hundred eighty-nine thousand, four hundred seventy-two".