16728632 has 16 divisors (see below), whose sum is σ = 31409640. Its totient is φ = 8352736.

The previous prime is 16728631. The next prime is 16728637. The reversal of 16728632 is 23682761.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16728592 and 16728601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16728631) 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 3 ways as a sum of consecutive naturals, for example, 10223 + ... + 11745.

Almost surely, 2^16728632 is an apocalyptic number.

It is an amenable number.

16728632 is a deficient number, since it is larger than the sum of its proper divisors (14681008).

16728632 is a wasteful number, since it uses less digits than its factorization.

16728632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902 (or 2898 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 16728632 is about 4090.0650361577. The cubic root of 16728632 is about 255.7526500823.

The spelling of 16728632 in words is "sixteen million, seven hundred twenty-eight thousand, six hundred thirty-two".