16889944 has 16 divisors (see below), whose sum is σ = 31732200. Its totient is φ = 8428032.

The previous prime is 16889941. The next prime is 16889953. The reversal of 16889944 is 44998861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16889941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787 + ... + 6445.

Almost surely, 2^16889944 is an apocalyptic number.

It is an amenable number.

16889944 is a deficient number, since it is larger than the sum of its proper divisors (14842256).

16889944 is a wasteful number, since it uses less digits than its factorization.

16889944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242 (or 4238 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 16889944 is about 4109.7377045257. The cubic root of 16889944 is about 256.5720848637.

The spelling of 16889944 in words is "sixteen million, eight hundred eighty-nine thousand, nine hundred forty-four".