489644352 has 140 divisors (see below), whose sum is σ = 1501970580. Its totient is φ = 157538304.

The previous prime is 489644299. The next prime is 489644359. The reversal of 489644352 is 253446984.

It can be written as a sum of positive squares in 2 ways, for example, as 345067776 + 144576576 = 18576^2 + 12024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 489644298 and 489644307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489644359) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 148708 + ... + 151964.

Almost surely, 2^489644352 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 489644352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750985290).

489644352 is an abundant number, since it is smaller than the sum of its proper divisors (1012326228).

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

489644352 is a wasteful number, since it uses less digits than its factorization.

489644352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310 (or 3291 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 489644352 is about 22127.9088935218. The cubic root of 489644352 is about 788.1827330949.

The spelling of 489644352 in words is "four hundred eighty-nine million, six hundred forty-four thousand, three hundred fifty-two".