16816944 has 80 divisors (see below), whose sum is σ = 47327328. Its totient is φ = 5124096.

The previous prime is 16816939. The next prime is 16816951. The reversal of 16816944 is 44961861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29914 + ... + 30470.

Almost surely, 2^16816944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16816944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23663664).

16816944 is an abundant number, since it is smaller than the sum of its proper divisors (30510384).

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

16816944 is a wasteful number, since it uses less digits than its factorization.

16816944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 616 counting only the distinct ones).

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

The square root of 16816944 is about 4100.8467418327. The cubic root of 16816944 is about 256.2019077703.

The spelling of 16816944 in words is "sixteen million, eight hundred sixteen thousand, nine hundred forty-four".