4216309 has 12 divisors (see below), whose sum is σ = 4580800. Its totient is φ = 3869424.

The previous prime is 4216297. The next prime is 4216327. The reversal of 4216309 is 9036124.

It is not a de Polignac number, because 4216309 - 2¹⁹ = 3692021 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 (4210309) 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 11 ways as a sum of consecutive naturals, for example, 53332 + ... + 53410.

Almost surely, 2^4216309 is an apocalyptic number.

It is an amenable number.

4216309 is a deficient number, since it is larger than the sum of its proper divisors (364491).

4216309 is an equidigital number, since it uses as much as digits as its factorization.

4216309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 4216309 is about 2053.3652865479. The cubic root of 4216309 is about 161.5514314431.

The spelling of 4216309 in words is "four million, two hundred sixteen thousand, three hundred nine".