489501000 has 192 divisors, whose sum is σ = 1670788080. Its totient is φ = 129254400.

The previous prime is 489500987. The next prime is 489501007. The reversal of 489501000 is 105984.

It can be written as a sum of positive squares in 8 ways, for example, as 45724644 + 443776356 = 6762^2 + 21066^2 .

It is a super-2 number, since 2×489501000² = 479222458002000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489501007) 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 47 ways as a sum of consecutive naturals, for example, 1232802 + ... + 1233198.

Almost surely, 2^489501000 is an apocalyptic number.

489501000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489501000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835394040).

489501000 is an abundant number, since it is smaller than the sum of its proper divisors (1181287080).

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

489501000 is a wasteful number, since it uses less digits than its factorization.

489501000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 489501000 is about 22124.6694890568. The cubic root of 489501000 is about 788.1058074659.

Adding to 489501000 its reverse (105984), we get a palindrome (489606984).

The spelling of 489501000 in words is "four hundred eighty-nine million, five hundred one thousand".