4089306 has 32 divisors (see below), whose sum is σ = 8910720. Its totient is φ = 1243584.

The previous prime is 4089289. The next prime is 4089307. The reversal of 4089306 is 6039804.

It is not an unprimeable number, because it can be changed into a prime (4089307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7780 + ... + 8288.

It is an arithmetic number, because the mean of its divisors is an integer number (278460).

Almost surely, 2^4089306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4089306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4455360).

4089306 is an abundant number, since it is smaller than the sum of its proper divisors (4821414).

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

4089306 is a wasteful number, since it uses less digits than its factorization.

4089306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 4089306 is about 2022.2032538793. The cubic root of 4089306 is about 159.9127910165.

The spelling of 4089306 in words is "four million, eighty-nine thousand, three hundred six".