16728992 has 72 divisors (see below), whose sum is σ = 39299904. Its totient is φ = 6986112.

The previous prime is 16728991. The next prime is 16729007. The reversal of 16728992 is 29982761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16728991) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 73583 + ... + 73809.

It is an arithmetic number, because the mean of its divisors is an integer number (545832).

Almost surely, 2^16728992 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 16728992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19649952).

16728992 is an abundant number, since it is smaller than the sum of its proper divisors (22570912).

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

16728992 is a wasteful number, since it uses less digits than its factorization.

16728992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 283 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 16728992 is about 4090.1090450011. The cubic root of 16728992 is about 255.7544846673.

The spelling of 16728992 in words is "sixteen million, seven hundred twenty-eight thousand, nine hundred ninety-two".