16197728 has 24 divisors (see below), whose sum is σ = 33568920. Its totient is φ = 7672320.

The previous prime is 16197691. The next prime is 16197737. The reversal of 16197728 is 82779161.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12713 + ... + 13928.

It is an arithmetic number, because the mean of its divisors is an integer number (1398705).

Almost surely, 2^16197728 is an apocalyptic number.

It is an amenable number.

16197728 is an abundant number, since it is smaller than the sum of its proper divisors (17371192).

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

16197728 is a wasteful number, since it uses less digits than its factorization.

16197728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26670 (or 26662 counting only the distinct ones).

The product of its digits is 42336, while the sum is 41.

The square root of 16197728 is about 4024.6401081339. The cubic root of 16197728 is about 253.0179701547.

The spelling of 16197728 in words is "sixteen million, one hundred ninety-seven thousand, seven hundred twenty-eight".