489121242 has 16 divisors (see below), whose sum is σ = 978663360. Its totient is φ = 162970272.

The previous prime is 489121223. The next prime is 489121247. The reversal of 489121242 is 242121984.

It is not an unprimeable number, because it can be changed into a prime (489121247) 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 7 ways as a sum of consecutive naturals, for example, 1267 + ... + 31302.

It is an arithmetic number, because the mean of its divisors is an integer number (61166460).

Almost surely, 2^489121242 is an apocalyptic number.

489121242 is an abundant number, since it is smaller than the sum of its proper divisors (489542118).

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

489121242 is a wasteful number, since it uses less digits than its factorization.

489121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35077.

The product of its digits is 9216, while the sum is 33.

The square root of 489121242 is about 22116.0855939744. The cubic root of 489121242 is about 787.9019489001.

The spelling of 489121242 in words is "four hundred eighty-nine million, one hundred twenty-one thousand, two hundred forty-two".