489345 has 32 divisors (see below), whose sum is σ = 881280. Its totient is φ = 230400.

The previous prime is 489343. The next prime is 489361. The reversal of 489345 is 543984.

It is not a de Polignac number, because 489345 - 2¹ = 489343 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489345.

It is not an unprimeable number, because it can be changed into a prime (489343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4795 + ... + 4895.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2⁴⁸⁹³⁴⁵ is an apocalyptic number.

It is an amenable number.

489345 is a deficient number, since it is larger than the sum of its proper divisors (391935).

489345 is a wasteful number, since it uses less digits than its factorization.

489345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145.

The product of its digits is 17280, while the sum is 33.

The square root of 489345 is about 699.5319864023. The cubic root of 489345 is about 78.8022077594.

The spelling of 489345 in words is "four hundred eighty-nine thousand, three hundred forty-five".