16443408 has 40 divisors (see below), whose sum is σ = 43121248. Its totient is φ = 5398272.

The previous prime is 16443397. The next prime is 16443431. The reversal of 16443408 is 80434461.

It is a super-3 number, since 3×16443408³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660 + ... + 5772.

Almost surely, 2^16443408 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 16443408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21560624).

16443408 is an abundant number, since it is smaller than the sum of its proper divisors (26677840).

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

16443408 is a wasteful number, since it uses less digits than its factorization.

16443408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191 (or 5185 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 16443408 is about 4055.0472253724. The cubic root of 16443408 is about 254.2907782400.

Adding to 16443408 its reverse (80434461), we get a palindrome (96877869).

The spelling of 16443408 in words is "sixteen million, four hundred forty-three thousand, four hundred eight".