16339728 has 80 divisors (see below), whose sum is σ = 44441600. Its totient is φ = 5166720.

The previous prime is 16339723. The next prime is 16339769. The reversal of 16339728 is 82793361.

It is a super-2 number, since 2×16339728² = 533973422227968, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16339721) 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 15 ways as a sum of consecutive naturals, for example, 117483 + ... + 117621.

It is an arithmetic number, because the mean of its divisors is an integer number (555520).

Almost surely, 2^16339728 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 16339728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22220800).

16339728 is an abundant number, since it is smaller than the sum of its proper divisors (28101872).

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

16339728 is a wasteful number, since it uses less digits than its factorization.

16339728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 254 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 16339728 is about 4042.2429417342. The cubic root of 16339728 is about 253.7551943091.

The spelling of 16339728 in words is "sixteen million, three hundred thirty-nine thousand, seven hundred twenty-eight".