489681432 has 96 divisors (see below), whose sum is σ = 1350694800. Its totient is φ = 160247808.

The previous prime is 489681427. The next prime is 489681457. The reversal of 489681432 is 234186984.

It is a happy number.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1130688 + ... + 1131120.

Almost surely, 2^489681432 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 489681432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675347400).

489681432 is an abundant number, since it is smaller than the sum of its proper divisors (861013368).

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

489681432 is a wasteful number, since it uses less digits than its factorization.

489681432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 690 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 489681432 is about 22128.7467336042. The cubic root of 489681432 is about 788.2026285407.

The spelling of 489681432 in words is "four hundred eighty-nine million, six hundred eighty-one thousand, four hundred thirty-two".