18050012 has 6 divisors (see below), whose sum is σ = 31587528. Its totient is φ = 9025004.

The previous prime is 18050003. The next prime is 18050027. The reversal of 18050012 is 21005081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2256248 + ... + 2256255.

It is an arithmetic number, because the mean of its divisors is an integer number (5264588).

Almost surely, 2^18050012 is an apocalyptic number.

It is an amenable number.

18050012 is a deficient number, since it is larger than the sum of its proper divisors (13537516).

18050012 is a wasteful number, since it uses less digits than its factorization.

18050012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512507 (or 4512505 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 18050012 is about 4248.5305695028. The cubic root of 18050012 is about 262.3166344519.

Adding to 18050012 its reverse (21005081), we get a palindrome (39055093).

The spelling of 18050012 in words is "eighteen million, fifty thousand, twelve".