490049728 has 56 divisors (see below), whose sum is σ = 1121859072. Its totient is φ = 208038144.

The previous prime is 490049711. The next prime is 490049731. The reversal of 490049728 is 827940094.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42825 + ... + 53047.

Almost surely, 2^490049728 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 490049728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560929536).

490049728 is an abundant number, since it is smaller than the sum of its proper divisors (631809344).

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

490049728 is a wasteful number, since it uses less digits than its factorization.

490049728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10349 (or 10339 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 490049728 is about 22137.0668337068. The cubic root of 490049728 is about 788.4001849582.

The spelling of 490049728 in words is "four hundred ninety million, forty-nine thousand, seven hundred twenty-eight".