4491008 has 36 divisors (see below), whose sum is σ = 9161208. Its totient is φ = 2196480.

The previous prime is 4491007. The next prime is 4491013. The reversal of 4491008 is 8001944.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13403 + ... + 13733.

It is an arithmetic number, because the mean of its divisors is an integer number (254478).

Almost surely, 2^4491008 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 4491008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4580604).

4491008 is an abundant number, since it is smaller than the sum of its proper divisors (4670200).

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

4491008 is an equidigital number, since it uses as much as digits as its factorization.

4491008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4491008 is about 2119.1998489996. The cubic root of 4491008 is about 164.9863227108.

The spelling of 4491008 in words is "four million, four hundred ninety-one thousand, eight".