16809308 has 6 divisors (see below), whose sum is σ = 29416296. Its totient is φ = 8404652.

The previous prime is 16809307. The next prime is 16809323. The reversal of 16809308 is 80390861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16809301) 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 as a sum of consecutive naturals, namely, 2101160 + ... + 2101167.

It is an arithmetic number, because the mean of its divisors is an integer number (4902716).

Almost surely, 2^16809308 is an apocalyptic number.

It is an amenable number.

16809308 is a deficient number, since it is larger than the sum of its proper divisors (12606988).

16809308 is a wasteful number, since it uses less digits than its factorization.

16809308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202331 (or 4202329 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16809308 is about 4099.9156088876. The cubic root of 16809308 is about 256.1631243872.

The spelling of 16809308 in words is "sixteen million, eight hundred nine thousand, three hundred eight".