489618234 has 24 divisors (see below), whose sum is σ = 1212388320. Its totient is φ = 139890888.

The previous prime is 489618203. The next prime is 489618257. The reversal of 489618234 is 432816984.

It is a happy number.

489618234 is a `hidden beast` number, since 4 + 8 + 9 + 618 + 23 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 489618234.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1942804 + ... + 1943055.

It is an arithmetic number, because the mean of its divisors is an integer number (50516180).

Almost surely, 2^489618234 is an apocalyptic number.

489618234 is an abundant number, since it is smaller than the sum of its proper divisors (722770086).

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

489618234 is a wasteful number, since it uses less digits than its factorization.

489618234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885874 (or 3885871 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 489618234 is about 22127.3187259550. The cubic root of 489618234 is about 788.1687187581.

The spelling of 489618234 in words is "four hundred eighty-nine million, six hundred eighteen thousand, two hundred thirty-four".