16809384 has 16 divisors (see below), whose sum is σ = 42023520. Its totient is φ = 5603120.

The previous prime is 16809371. The next prime is 16809391. The reversal of 16809384 is 48390861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350172 + ... + 350219.

It is an arithmetic number, because the mean of its divisors is an integer number (2626470).

Almost surely, 2^16809384 is an apocalyptic number.

It is an amenable number.

16809384 is an abundant number, since it is smaller than the sum of its proper divisors (25214136).

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

16809384 is a wasteful number, since it uses less digits than its factorization.

16809384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700400 (or 700396 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 16809384 is about 4099.9248773606. The cubic root of 16809384 is about 256.1635104504.

The spelling of 16809384 in words is "sixteen million, eight hundred nine thousand, three hundred eighty-four".