16450728 has 64 divisors (see below), whose sum is σ = 47349120. Its totient is φ = 4665600.

The previous prime is 16450703. The next prime is 16450729. The reversal of 16450728 is 82705461.

It is not an unprimeable number, because it can be changed into a prime (16450729) 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, 30138 + ... + 30678.

It is an arithmetic number, because the mean of its divisors is an integer number (739830).

Almost surely, 2^16450728 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 16450728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23674560).

16450728 is an abundant number, since it is smaller than the sum of its proper divisors (30898392).

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

16450728 is a wasteful number, since it uses less digits than its factorization.

16450728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 16450728 is about 4055.9497038302. The cubic root of 16450728 is about 254.3285062738.

The spelling of 16450728 in words is "sixteen million, four hundred fifty thousand, seven hundred twenty-eight".