489645229 has 4 divisors (see below), whose sum is σ = 510934176. Its totient is φ = 468356284.

The previous prime is 489645227. The next prime is 489645253. The reversal of 489645229 is 922546984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 489645229 - 2¹ = 489645227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489645223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10644439 + ... + 10644484.

It is an arithmetic number, because the mean of its divisors is an integer number (127733544).

Almost surely, 2^489645229 is an apocalyptic number.

It is an amenable number.

489645229 is a deficient number, since it is larger than the sum of its proper divisors (21288947).

489645229 is a wasteful number, since it uses less digits than its factorization.

489645229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21288946.

The product of its digits is 1244160, while the sum is 49.

The square root of 489645229 is about 22127.9287101165. The cubic root of 489645229 is about 788.1832036649.

The spelling of 489645229 in words is "four hundred eighty-nine million, six hundred forty-five thousand, two hundred twenty-nine".