4491568 has 20 divisors (see below), whose sum is σ = 8738280. Its totient is φ = 2236544.

The previous prime is 4491551. The next prime is 4491569. The reversal of 4491568 is 8651944.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4491569) 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, 5148 + ... + 5956.

It is an arithmetic number, because the mean of its divisors is an integer number (436914).

Almost surely, 2^4491568 is an apocalyptic number.

It is an amenable number.

4491568 is a deficient number, since it is larger than the sum of its proper divisors (4246712).

4491568 is a wasteful number, since it uses less digits than its factorization.

4491568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1158 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 4491568 is about 2119.3319702208. The cubic root of 4491568 is about 164.9931800058.

The spelling of 4491568 in words is "four million, four hundred ninety-one thousand, five hundred sixty-eight".