16682449 has 16 divisors (see below), whose sum is σ = 20071296. Its totient is φ = 13564800.

The previous prime is 16682447. The next prime is 16682461. The reversal of 16682449 is 94428661.

It is a cyclic number.

It is not a de Polignac number, because 16682449 - 2¹ = 16682447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16682441) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9834 + ... + 11404.

It is an arithmetic number, because the mean of its divisors is an integer number (1254456).

Almost surely, 2^16682449 is an apocalyptic number.

It is an amenable number.

16682449 is a deficient number, since it is larger than the sum of its proper divisors (3388847).

16682449 is a wasteful number, since it uses less digits than its factorization.

16682449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its digits is 82944, while the sum is 40.

The square root of 16682449 is about 4084.4153804431. The cubic root of 16682449 is about 255.5170797007.

The spelling of 16682449 in words is "sixteen million, six hundred eighty-two thousand, four hundred forty-nine".