489340665 has 48 divisors (see below), whose sum is σ = 979744896. Its totient is φ = 223296000.

The previous prime is 489340637. The next prime is 489340669. The reversal of 489340665 is 566043984.

It is not a de Polignac number, because 489340665 - 2⁹ = 489340153 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 489340665.

It is not an unprimeable number, because it can be changed into a prime (489340669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20661 + ... + 37490.

It is an arithmetic number, because the mean of its divisors is an integer number (20411352).

Almost surely, 2^489340665 is an apocalyptic number.

489340665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

489340665 is an abundant number, since it is smaller than the sum of its proper divisors (490404231).

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

489340665 is a wasteful number, since it uses less digits than its factorization.

489340665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58190 (or 58187 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 489340665 is about 22121.0457483366. The cubic root of 489340665 is about 788.0197506151.

The spelling of 489340665 in words is "four hundred eighty-nine million, three hundred forty thousand, six hundred sixty-five".