18412012 has 12 divisors (see below), whose sum is σ = 32767560. Its totient is φ = 9049856.

The previous prime is 18412001. The next prime is 18412027. The reversal of 18412012 is 21021481.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38773 + ... + 39244.

It is an arithmetic number, because the mean of its divisors is an integer number (2730630).

Almost surely, 2^18412012 is an apocalyptic number.

It is an amenable number.

18412012 is a deficient number, since it is larger than the sum of its proper divisors (14355548).

18412012 is a wasteful number, since it uses less digits than its factorization.

18412012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78080 (or 78078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 18412012 is about 4290.9220454350. The cubic root of 18412012 is about 264.0586608244.

Adding to 18412012 its reverse (21021481), we get a palindrome (39433493).

The spelling of 18412012 in words is "eighteen million, four hundred twelve thousand, twelve".