489144825 has 120 divisors (see below), whose sum is σ = 1034105688. Its totient is φ = 226437120.

The previous prime is 489144779. The next prime is 489144857. The reversal of 489144825 is 528441984.

489144825 is a `hidden beast` number, since 489 + 144 + 8 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 29942784 + 459202041 = 5472^2 + 21429^2 .

It is not a de Polignac number, because 489144825 - 2¹⁰ = 489143801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 446979 + ... + 448071.

Almost surely, 2^489144825 is an apocalyptic number.

489144825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

489144825 is an abundant number, since it is smaller than the sum of its proper divisors (544960863).

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

489144825 is a wasteful number, since it uses less digits than its factorization.

489144825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1131 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 489144825 is about 22116.6187515181. The cubic root of 489144825 is about 787.9146116044.

The spelling of 489144825 in words is "four hundred eighty-nine million, one hundred forty-four thousand, eight hundred twenty-five".