490028 has 48 divisors (see below), whose sum is σ = 1123584. Its totient is φ = 181440.

The previous prime is 490019. The next prime is 490031. The reversal of 490028 is 820094.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 489985 and 490012.

It is a congruent number.

It is an unprimeable number.

490028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11375 + ... + 11417.

It is an arithmetic number, because the mean of its divisors is an integer number (23408).

2⁴⁹⁰⁰²⁸ 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 490028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561792).

490028 is an abundant number, since it is smaller than the sum of its proper divisors (633556).

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

490028 is a wasteful number, since it uses less digits than its factorization.

490028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 490028 is about 700.0199997143. The cubic root of 490028 is about 78.8388532663.

The spelling of 490028 in words is "four hundred ninety thousand, twenty-eight".