16944224 has 48 divisors (see below), whose sum is σ = 37403856. Its totient is φ = 7488000.

The previous prime is 16944217. The next prime is 16944227. The reversal of 16944224 is 42244961.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16944227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12374 + ... + 13674.

It is an arithmetic number, because the mean of its divisors is an integer number (779247).

Almost surely, 2^16944224 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 16944224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18701928).

16944224 is an abundant number, since it is smaller than the sum of its proper divisors (20459632).

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

16944224 is a wasteful number, since it uses less digits than its factorization.

16944224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1351 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 16944224 is about 4116.3362350517. The cubic root of 16944224 is about 256.8466435074.

The spelling of 16944224 in words is "sixteen million, nine hundred forty-four thousand, two hundred twenty-four".