16671338 has 8 divisors (see below), whose sum is σ = 25617060. Its totient is φ = 8132320.

The previous prime is 16671331. The next prime is 16671353. The reversal of 16671338 is 83317661.

It can be written as a sum of positive squares in 2 ways, for example, as 12061729 + 4609609 = 3473^2 + 2147^2 .

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 = 16671298 and 16671307.

It is not an unprimeable number, because it can be changed into a prime (16671331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101573 + ... + 101736.

Almost surely, 2^16671338 is an apocalyptic number.

16671338 is a deficient number, since it is larger than the sum of its proper divisors (8945722).

16671338 is a wasteful number, since it uses less digits than its factorization.

16671338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203352.

The product of its digits is 18144, while the sum is 35.

The square root of 16671338 is about 4083.0549837101. The cubic root of 16671338 is about 255.4603398139.

Adding to 16671338 its reverse (83317661), we get a palindrome (99988999).

The spelling of 16671338 in words is "sixteen million, six hundred seventy-one thousand, three hundred thirty-eight".