16438448 has 20 divisors (see below), whose sum is σ = 34299888. Its totient is φ = 7586880.

The previous prime is 16438441. The next prime is 16438459. The reversal of 16438448 is 84483461.

It is a super-4 number, since 4×16438448⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16438441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39308 + ... + 39723.

Almost surely, 2^16438448 is an apocalyptic number.

It is an amenable number.

16438448 is an abundant number, since it is smaller than the sum of its proper divisors (17861440).

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

16438448 is a wasteful number, since it uses less digits than its factorization.

16438448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79052 (or 79046 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 16438448 is about 4054.4355957396. The cubic root of 16438448 is about 254.2652075250.

The spelling of 16438448 in words is "sixteen million, four hundred thirty-eight thousand, four hundred forty-eight".