4066309 has 6 divisors (see below), whose sum is σ = 4403346. Its totient is φ = 3753360.

The previous prime is 4066289. The next prime is 4066313. The reversal of 4066309 is 9036604.

It can be written as a sum of positive squares in 3 ways, for example, as 494209 + 3572100 = 703^2 + 1890^2 .

It is not a de Polignac number, because 4066309 - 2²¹ = 1969157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11862 + ... + 12199.

It is an arithmetic number, because the mean of its divisors is an integer number (733891).

Almost surely, 2^4066309 is an apocalyptic number.

It is an amenable number.

4066309 is a deficient number, since it is larger than the sum of its proper divisors (337037).

4066309 is a wasteful number, since it uses less digits than its factorization.

4066309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24087 (or 24074 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 4066309 is about 2016.5091123027. The cubic root of 4066309 is about 159.6124605276.

The spelling of 4066309 in words is "four million, sixty-six thousand, three hundred nine".