16671938 has 8 divisors (see below), whose sum is σ = 25188240. Its totient is φ = 8275860.

The previous prime is 16671937. The next prime is 16671947. The reversal of 16671938 is 83917661.

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

It is a junction number, because it is equal to n+sod(n) for n = 16671895 and 16671904.

It is not an unprimeable number, because it can be changed into a prime (16671937) 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, 29708 + ... + 30263.

It is an arithmetic number, because the mean of its divisors is an integer number (3148530).

Almost surely, 2^16671938 is an apocalyptic number.

16671938 is a deficient number, since it is larger than the sum of its proper divisors (8516302).

16671938 is a wasteful number, since it uses less digits than its factorization.

16671938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60112.

The product of its digits is 54432, while the sum is 41.

The square root of 16671938 is about 4083.1284574453. The cubic root of 16671938 is about 255.4634044423.

The spelling of 16671938 in words is "sixteen million, six hundred seventy-one thousand, nine hundred thirty-eight".