4490128 has 20 divisors (see below), whose sum is σ = 9000540. Its totient is φ = 2167424.

The previous prime is 4490119. The next prime is 4490131. The reversal of 4490128 is 8210944.

It can be written as a sum of positive squares in 2 ways, for example, as 2715904 + 1774224 = 1648^2 + 1332^2 .

It is a super-2 number, since 2×4490128² = 40322498912768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4490096 and 4490105.

It is an unprimeable number.

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, 4375 + ... + 5302.

It is an arithmetic number, because the mean of its divisors is an integer number (450027).

Almost surely, 2^4490128 is an apocalyptic number.

It is an amenable number.

4490128 is an abundant number, since it is smaller than the sum of its proper divisors (4510412).

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

4490128 is a wasteful number, since it uses less digits than its factorization.

4490128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9714 (or 9708 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4490128 is about 2118.9922132939. The cubic root of 4490128 is about 164.9755458096.

The spelling of 4490128 in words is "four million, four hundred ninety thousand, one hundred twenty-eight".