16332728 has 16 divisors (see below), whose sum is σ = 31044480. Its totient is φ = 8054208.

The previous prime is 16332727. The next prime is 16332739. The reversal of 16332728 is 82723361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16332694 and 16332703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16332721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13400 + ... + 14567.

It is an arithmetic number, because the mean of its divisors is an integer number (1940280).

Almost surely, 2^16332728 is an apocalyptic number.

It is an amenable number.

16332728 is a deficient number, since it is larger than the sum of its proper divisors (14711752).

16332728 is a wasteful number, since it uses less digits than its factorization.

16332728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28046 (or 28042 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 16332728 is about 4041.3769930557. The cubic root of 16332728 is about 253.7189525782.

The spelling of 16332728 in words is "sixteen million, three hundred thirty-two thousand, seven hundred twenty-eight".