16234209 has 8 divisors (see below), whose sum is σ = 24050720. Its totient is φ = 10822788.

The previous prime is 16234123. The next prime is 16234217. The reversal of 16234209 is 90243261.

It is not a de Polignac number, because 16234209 - 2⁷ = 16234081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 601267 = 16234209 / (1 + 6 + 2 + 3 + 4 + 2 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16234259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300607 + ... + 300660.

It is an arithmetic number, because the mean of its divisors is an integer number (3006340).

Almost surely, 2^16234209 is an apocalyptic number.

It is an amenable number.

16234209 is a deficient number, since it is larger than the sum of its proper divisors (7816511).

16234209 is an equidigital number, since it uses as much as digits as its factorization.

16234209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601276 (or 601270 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 16234209 is about 4029.1697655969. The cubic root of 16234209 is about 253.2077792358.

It can be divided in two parts, 1623 and 4209, that added together give a cube (5832 = 18³).

The spelling of 16234209 in words is "sixteen million, two hundred thirty-four thousand, two hundred nine".