16303216 has 20 divisors (see below), whose sum is σ = 33250600. Its totient is φ = 7722432.

The previous prime is 16303211. The next prime is 16303229. The reversal of 16303216 is 61230361.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16303211) by changing a digit.

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, 26511 + ... + 27118.

It is an arithmetic number, because the mean of its divisors is an integer number (1662530).

Almost surely, 2^16303216 is an apocalyptic number.

16303216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16303216 is an abundant number, since it is smaller than the sum of its proper divisors (16947384).

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

16303216 is a wasteful number, since it uses less digits than its factorization.

16303216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53656 (or 53650 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 16303216 is about 4037.7241114271. The cubic root of 16303216 is about 253.5660434787.

Adding to 16303216 its reverse (61230361), we get a palindrome (77533577).

The spelling of 16303216 in words is "sixteen million, three hundred three thousand, two hundred sixteen".