4489668 has 72 divisors (see below), whose sum is σ = 12230400. Its totient is φ = 1438560.

The previous prime is 4489663. The next prime is 4489687. The reversal of 4489668 is 8669844.

It is a happy number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (4489663) 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 23 ways as a sum of consecutive naturals, for example, 30058 + ... + 30206.

Almost surely, 2^4489668 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 4489668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6115200).

4489668 is an abundant number, since it is smaller than the sum of its proper divisors (7740732).

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

4489668 is a wasteful number, since it uses less digits than its factorization.

4489668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 185 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 4489668 is about 2118.8836683499. The cubic root of 4489668 is about 164.9699118691.

The spelling of 4489668 in words is "four million, four hundred eighty-nine thousand, six hundred sixty-eight".