16682320 has 20 divisors (see below), whose sum is σ = 38786580. Its totient is φ = 6672896.

The previous prime is 16682317. The next prime is 16682357. The reversal of 16682320 is 2328661.

It can be written as a sum of positive squares in 2 ways, for example, as 11262736 + 5419584 = 3356^2 + 2328^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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, 104185 + ... + 104344.

It is an arithmetic number, because the mean of its divisors is an integer number (1939329).

Almost surely, 2^16682320 is an apocalyptic number.

16682320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16682320 is an abundant number, since it is smaller than the sum of its proper divisors (22104260).

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

16682320 is a wasteful number, since it uses less digits than its factorization.

16682320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208542 (or 208536 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 16682320 is about 4084.3995886789. The cubic root of 16682320 is about 255.5164210886.

The spelling of 16682320 in words is "sixteen million, six hundred eighty-two thousand, three hundred twenty".