4089220 has 12 divisors (see below), whose sum is σ = 8587404. Its totient is φ = 1635680.

The previous prime is 4089209. The next prime is 4089221. The reversal of 4089220 is 229804.

4089220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 2304324 = 1336^2 + 1518^2 .

It is not an unprimeable number, because it can be changed into a prime (4089221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102211 + ... + 102250.

It is an arithmetic number, because the mean of its divisors is an integer number (715617).

Almost surely, 2^4089220 is an apocalyptic number.

It is an amenable number.

4089220 is an abundant number, since it is smaller than the sum of its proper divisors (4498184).

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

4089220 is a wasteful number, since it uses less digits than its factorization.

4089220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204470 (or 204468 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 4089220 is about 2022.1819898318. The cubic root of 4089220 is about 159.9116699953.

The spelling of 4089220 in words is "four million, eighty-nine thousand, two hundred twenty".