489428238 has 32 divisors (see below), whose sum is σ = 1055811456. Its totient is φ = 150356448.

The previous prime is 489428237. The next prime is 489428243. The reversal of 489428238 is 832824984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489428231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48681 + ... + 57867.

It is an arithmetic number, because the mean of its divisors is an integer number (32994108).

Almost surely, 2^489428238 is an apocalyptic number.

489428238 is an abundant number, since it is smaller than the sum of its proper divisors (566383218).

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

489428238 is a wasteful number, since it uses less digits than its factorization.

489428238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9888.

The product of its digits is 884736, while the sum is 48.

The square root of 489428238 is about 22123.0250643984. The cubic root of 489428238 is about 788.0667561352.

The spelling of 489428238 in words is "four hundred eighty-nine million, four hundred twenty-eight thousand, two hundred thirty-eight".