489432384 has 126 divisors (see below), whose sum is σ = 1632003594. Its totient is φ = 139829760.

The previous prime is 489432353. The next prime is 489432401. The reversal of 489432384 is 483234984.

It can be written as a sum of positive squares in only one way, i.e., 476985600 + 12446784 = 21840^2 + 3528^2 .

It is a tau number, because it is divible by the number of its divisors (126).

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

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 19554 + ... + 36894.

Almost surely, 2^489432384 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 489432384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816001797).

489432384 is an abundant number, since it is smaller than the sum of its proper divisors (1142571210).

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

489432384 is a wasteful number, since it uses less digits than its factorization.

489432384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17373 (or 17353 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 489432384 is about 22123.1187674794. The cubic root of 489432384 is about 788.0689813954.

The spelling of 489432384 in words is "four hundred eighty-nine million, four hundred thirty-two thousand, three hundred eighty-four".