489736900 has 27 divisors (see below), whose sum is σ = 1063209511. Its totient is φ = 195806240.

The previous prime is 489736813. The next prime is 489736903. The reversal of 489736900 is 9637984.

The square root of 489736900 is 22130.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 137499076 + 352237824 = 11726^2 + 18768^2 .

It is a super-2 number, since 2×489736900² = 479684462443220000, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489736903) 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 8 ways as a sum of consecutive naturals, for example, 220194 + ... + 222406.

Almost surely, 2^489736900 is an apocalyptic number.

489736900 is the 22130-th square number.

It is an amenable number.

489736900 is an abundant number, since it is smaller than the sum of its proper divisors (573472611).

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

489736900 is an equidigital number, since it uses as much as digits as its factorization.

489736900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The cubic root of 489736900 is about 788.2323882783.

The spelling of 489736900 in words is "four hundred eighty-nine million, seven hundred thirty-six thousand, nine hundred".