490489608 has 96 divisors (see below), whose sum is σ = 1439436960. Its totient is φ = 138862080.

The previous prime is 490489589. The next prime is 490489639. The reversal of 490489608 is 806984094.

It is a Cunningham number, because it is equal to 22147²-1.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 131043 + ... + 134733.

It is an arithmetic number, because the mean of its divisors is an integer number (14994135).

Almost surely, 2^490489608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490489608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719718480).

490489608 is an abundant number, since it is smaller than the sum of its proper divisors (948947352).

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

490489608 is a wasteful number, since it uses less digits than its factorization.

490489608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827 (or 3816 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 490489608 is about 22146.9999774236. Note that the first 4 decimals coincide. The cubic root of 490489608 is about 788.6360098412.

The spelling of 490489608 in words is "four hundred ninety million, four hundred eighty-nine thousand, six hundred eight".