489408426 has 64 divisors (see below), whose sum is σ = 1176537600. Its totient is φ = 149905728.

The previous prime is 489408391. The next prime is 489408433. The reversal of 489408426 is 624804984.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 166320 + ... + 169236.

It is an arithmetic number, because the mean of its divisors is an integer number (18383400).

Almost surely, 2^489408426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489408426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588268800).

489408426 is an abundant number, since it is smaller than the sum of its proper divisors (687129174).

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

489408426 is a wasteful number, since it uses less digits than its factorization.

489408426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180 (or 3174 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 489408426 is about 22122.5772910843. The cubic root of 489408426 is about 788.0561223738.

The spelling of 489408426 in words is "four hundred eighty-nine million, four hundred eight thousand, four hundred twenty-six".