18860012 has 12 divisors (see below), whose sum is σ = 33050976. Its totient is φ = 9416880.

The previous prime is 18860011. The next prime is 18860029. The reversal of 18860012 is 21006881.

It is not an unprimeable number, because it can be changed into a prime (18860011) 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, 413 + ... + 6155.

It is an arithmetic number, because the mean of its divisors is an integer number (2754248).

Almost surely, 2^18860012 is an apocalyptic number.

It is an amenable number.

18860012 is a deficient number, since it is larger than the sum of its proper divisors (14190964).

18860012 is a wasteful number, since it uses less digits than its factorization.

18860012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6568 (or 6566 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 18860012 is about 4342.8115317154. The cubic root of 18860012 is about 266.1832080616.

Adding to 18860012 its reverse (21006881), we get a palindrome (39866893).

The spelling of 18860012 in words is "eighteen million, eight hundred sixty thousand, twelve".