490028128 has 48 divisors (see below), whose sum is σ = 1038308544. Its totient is φ = 226805760.

The previous prime is 490028117. The next prime is 490028137. The reversal of 490028128 is 821820094.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 490028093 and 490028102.

It is a congruent number.

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, 25801 + ... + 40567.

It is an arithmetic number, because the mean of its divisors is an integer number (21631428).

Almost surely, 2^490028128 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 490028128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519154272).

490028128 is an abundant number, since it is smaller than the sum of its proper divisors (548280416).

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

490028128 is a wasteful number, since it uses less digits than its factorization.

490028128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14855 (or 14847 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 490028128 is about 22136.5789588184. The cubic root of 490028128 is about 788.3886013078.

The spelling of 490028128 in words is "four hundred ninety million, twenty-eight thousand, one hundred twenty-eight".