16786338 has 8 divisors (see below), whose sum is σ = 33572688. Its totient is φ = 5595444.

The previous prime is 16786337. The next prime is 16786369. The reversal of 16786338 is 83368761.

It is a sphenic number, since it is the product of 3 distinct primes.

16786338 is an admirable number.

It is a super-2 number, since 2×16786338² = 563562286900488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16786338.

It is not an unprimeable number, because it can be changed into a prime (16786333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398856 + ... + 1398867.

It is an arithmetic number, because the mean of its divisors is an integer number (4196586).

Almost surely, 2^16786338 is an apocalyptic number.

16786338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16786338 is a wasteful number, since it uses less digits than its factorization.

16786338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797728.

The product of its digits is 145152, while the sum is 42.

The square root of 16786338 is about 4097.1133740720. The cubic root of 16786338 is about 256.0463884849.

The spelling of 16786338 in words is "sixteen million, seven hundred eighty-six thousand, three hundred thirty-eight".