4490020 has 12 divisors (see below), whose sum is σ = 9429084. Its totient is φ = 1796000.

The previous prime is 4489999. The next prime is 4490029. The reversal of 4490020 is 200944.

It can be written as a sum of positive squares in 2 ways, for example, as 1747684 + 2742336 = 1322^2 + 1656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4490020.

It is not an unprimeable number, because it can be changed into a prime (4490029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112231 + ... + 112270.

It is an arithmetic number, because the mean of its divisors is an integer number (785757).

Almost surely, 2^4490020 is an apocalyptic number.

It is an amenable number.

4490020 is an abundant number, since it is smaller than the sum of its proper divisors (4939064).

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

4490020 is a wasteful number, since it uses less digits than its factorization.

4490020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224510 (or 224508 counting only the distinct ones).

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

The square root of 4490020 is about 2118.9667293282. The cubic root of 4490020 is about 164.9742230929.

Adding to 4490020 its reverse (200944), we get a palindrome (4690964).

The spelling of 4490020 in words is "four million, four hundred ninety thousand, twenty".