16438016 has 36 divisors (see below), whose sum is σ = 37503312. Its totient is φ = 7044096.

The previous prime is 16437989. The next prime is 16438039. The reversal of 16438016 is 61083461.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16438016.

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 3 ways as a sum of consecutive naturals, for example, 2795 + ... + 6378.

Almost surely, 2^16438016 is an apocalyptic number.

16438016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16438016 is an abundant number, since it is smaller than the sum of its proper divisors (21065296).

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

16438016 is an frugal number, since it uses more digits than its factorization.

16438016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9196 (or 9182 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 16438016 is about 4054.3823204034. The cubic root of 16438016 is about 254.2629801547.

The spelling of 16438016 in words is "sixteen million, four hundred thirty-eight thousand, sixteen".