16771328 has 72 divisors (see below), whose sum is σ = 39244800. Its totient is φ = 7150080.

The previous prime is 16771303. The next prime is 16771331. The reversal of 16771328 is 82317761.

It is a nialpdrome in base 4, base 8 and base 16.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 87713 + ... + 87903.

Almost surely, 2^16771328 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 16771328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19622400).

16771328 is an abundant number, since it is smaller than the sum of its proper divisors (22473472).

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

16771328 is an frugal number, since it uses more digits than its factorization.

16771328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 200 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 16771328 is about 4095.2811869272. The cubic root of 16771328 is about 255.9700485792.

It can be divided in two parts, 167713 and 28, that multiplied together give a palindrome (4695964).

The spelling of 16771328 in words is "sixteen million, seven hundred seventy-one thousand, three hundred twenty-eight".