490428 has 48 divisors (see below), whose sum is σ = 1344000. Its totient is φ = 154224.

The previous prime is 490421. The next prime is 490453. The reversal of 490428 is 824094.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490421) by changing a digit.

490428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (28000).

2⁴⁹⁰⁴²⁸ 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 490428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672000).

490428 is an abundant number, since it is smaller than the sum of its proper divisors (853572).

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

490428 is a wasteful number, since it uses less digits than its factorization.

490428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 490428 is about 700.3056475568. The cubic root of 490428 is about 78.8602989555.

The spelling of 490428 in words is "four hundred ninety thousand, four hundred twenty-eight".