16860012 has 96 divisors (see below), whose sum is σ = 45760512. Its totient is φ = 4790016.

The previous prime is 16859993. The next prime is 16860013. The reversal of 16860012 is 21006861.

It is not an unprimeable number, because it can be changed into a prime (16860013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132693 + ... + 132819.

It is an arithmetic number, because the mean of its divisors is an integer number (476672).

Almost surely, 2^16860012 is an apocalyptic number.

16860012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16860012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22880256).

16860012 is an abundant number, since it is smaller than the sum of its proper divisors (28900500).

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

16860012 is a wasteful number, since it uses less digits than its factorization.

16860012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 16860012 is about 4106.0944947724. The cubic root of 16860012 is about 256.4204313764.

Adding to 16860012 its reverse (21006861), we get a palindrome (37866873).

The spelling of 16860012 in words is "sixteen million, eight hundred sixty thousand, twelve".