16109008 has 20 divisors (see below), whose sum is σ = 31443300. Its totient is φ = 7994624.

The previous prime is 16109003. The next prime is 16109033. The reversal of 16109008 is 80090161.

It can be written as a sum of positive squares in 2 ways, for example, as 10291264 + 5817744 = 3208^2 + 2412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16109003) 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, 1483 + ... + 5866.

It is an arithmetic number, because the mean of its divisors is an integer number (1572165).

Almost surely, 2^16109008 is an apocalyptic number.

It is an amenable number.

16109008 is a deficient number, since it is larger than the sum of its proper divisors (15334292).

16109008 is a wasteful number, since it uses less digits than its factorization.

16109008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7494 (or 7488 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 16109008 is about 4013.6028702402. The cubic root of 16109008 is about 252.5551714229. Note that the first 3 decimals are identical.

Adding to 16109008 its reverse (80090161), we get a palindrome (96199169).

The spelling of 16109008 in words is "sixteen million, one hundred nine thousand, eight".