490420 has 48 divisors (see below), whose sum is σ = 1225728. Its totient is φ = 161280.

The previous prime is 490417. The next prime is 490421. The reversal of 490420 is 24094.

It is a nialpdrome in base 14.

It is a congruent number.

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

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 15 ways as a sum of consecutive naturals, for example, 4284 + ... + 4396.

It is an arithmetic number, because the mean of its divisors is an integer number (25536).

2⁴⁹⁰⁴²⁰ 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 490420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612864).

490420 is an abundant number, since it is smaller than the sum of its proper divisors (735308).

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

490420 is a wasteful number, since it uses less digits than its factorization.

490420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 490420 is about 700.2999357418. The cubic root of 490420 is about 78.8598701560.

The spelling of 490420 in words is "four hundred ninety thousand, four hundred twenty".