16682249 has 4 divisors (see below), whose sum is σ = 16869780. Its totient is φ = 16494720.

The previous prime is 16682233. The next prime is 16682251. The reversal of 16682249 is 94228661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94228661 = 89 ⋅1058749.

It can be written as a sum of positive squares in 2 ways, for example, as 5257849 + 11424400 = 2293^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 16682249 - 2⁴ = 16682233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16682269) 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, 93632 + ... + 93809.

It is an arithmetic number, because the mean of its divisors is an integer number (4217445).

Almost surely, 2^16682249 is an apocalyptic number.

It is an amenable number.

16682249 is a deficient number, since it is larger than the sum of its proper divisors (187531).

16682249 is an equidigital number, since it uses as much as digits as its factorization.

16682249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187530.

The product of its digits is 41472, while the sum is 38.

The square root of 16682249 is about 4084.3908970616. The cubic root of 16682249 is about 255.5160585952.

The spelling of 16682249 in words is "sixteen million, six hundred eighty-two thousand, two hundred forty-nine".