16443244 has 12 divisors (see below), whose sum is σ = 29553664. Its totient is φ = 7999344.

The previous prime is 16443209. The next prime is 16443247. The reversal of 16443244 is 44234461.

It is a super-3 number, since 3×16443244³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16443247) 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, 55404 + ... + 55699.

Almost surely, 2^16443244 is an apocalyptic number.

It is an amenable number.

16443244 is a deficient number, since it is larger than the sum of its proper divisors (13110420).

16443244 is a wasteful number, since it uses less digits than its factorization.

16443244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111144 (or 111142 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 16443244 is about 4055.0270036092. The cubic root of 16443244 is about 254.2899328389.

The spelling of 16443244 in words is "sixteen million, four hundred forty-three thousand, two hundred forty-four".