16640112 has 20 divisors (see below), whose sum is σ = 42987080. Its totient is φ = 5546688.

The previous prime is 16640083. The next prime is 16640119. The reversal of 16640112 is 21104661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16640119) 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, 173287 + ... + 173382.

It is an arithmetic number, because the mean of its divisors is an integer number (2149354).

Almost surely, 2^16640112 is an apocalyptic number.

16640112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16640112 is an abundant number, since it is smaller than the sum of its proper divisors (26346968).

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

16640112 is a wasteful number, since it uses less digits than its factorization.

16640112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346680 (or 346674 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 16640112 is about 4079.2293389806. The cubic root of 16640112 is about 255.3007447420.

Adding to 16640112 its reverse (21104661), we get a palindrome (37744773).

The spelling of 16640112 in words is "sixteen million, six hundred forty thousand, one hundred twelve".