16672328 has 8 divisors (see below), whose sum is σ = 31260630. Its totient is φ = 8336160.

The previous prime is 16672321. The next prime is 16672343. The reversal of 16672328 is 82327661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16662724 + 9604 = 4082^2 + 98^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (16672321) 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 as a sum of consecutive naturals, namely, 1042013 + ... + 1042028.

Almost surely, 2^16672328 is an apocalyptic number.

It is an amenable number.

16672328 is a deficient number, since it is larger than the sum of its proper divisors (14588302).

16672328 is a wasteful number, since it uses less digits than its factorization.

16672328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084047 (or 2084043 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 16672328 is about 4083.1762146643. The cubic root of 16672328 is about 255.4653964113.

Adding to 16672328 its reverse (82327661), we get a palindrome (98999989).

The spelling of 16672328 in words is "sixteen million, six hundred seventy-two thousand, three hundred twenty-eight".