489821832 has 48 divisors (see below), whose sum is σ = 1372351500. Its totient is φ = 157643136.

The previous prime is 489821809. The next prime is 489821837. The reversal of 489821832 is 238128984.

It can be written as a sum of positive squares in 2 ways, for example, as 477247716 + 12574116 = 21846^2 + 3546^2 .

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

It is not an unprimeable number, because it can be changed into a prime (489821837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115207 + ... + 119382.

Almost surely, 2^489821832 is an apocalyptic number.

It is an amenable number.

489821832 is an abundant number, since it is smaller than the sum of its proper divisors (882529668).

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

489821832 is a wasteful number, since it uses less digits than its factorization.

489821832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234630 (or 234623 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 489821832 is about 22131.9188503844. The cubic root of 489821832 is about 788.2779517115.

The spelling of 489821832 in words is "four hundred eighty-nine million, eight hundred twenty-one thousand, eight hundred thirty-two".