489618432 has 110 divisors (see below), whose sum is σ = 1462344048. Its totient is φ = 163178496.

The previous prime is 489618427. The next prime is 489618439. The reversal of 489618432 is 234816984.

It is a happy number.

489618432 is a `hidden beast` number, since 489 + 61 + 84 + 32 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489618439) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79993 + ... + 85895.

Almost surely, 2^489618432 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 489618432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731172024).

489618432 is an abundant number, since it is smaller than the sum of its proper divisors (972725616).

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

489618432 is an equidigital number, since it uses as much as digits as its factorization.

489618432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5935 (or 5908 counting only the distinct ones).

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

The square root of 489618432 is about 22127.3232000620. The cubic root of 489618432 is about 788.1688250023.

The spelling of 489618432 in words is "four hundred eighty-nine million, six hundred eighteen thousand, four hundred thirty-two".