18446812 has 12 divisors (see below), whose sum is σ = 32368896. Its totient is φ = 9198560.

The previous prime is 18446801. The next prime is 18446821. The reversal of 18446812 is 21864481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4489 + ... + 7552.

It is an arithmetic number, because the mean of its divisors is an integer number (2697408).

Almost surely, 2^18446812 is an apocalyptic number.

It is an amenable number.

18446812 is a deficient number, since it is larger than the sum of its proper divisors (13922084).

18446812 is a wasteful number, since it uses less digits than its factorization.

18446812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12428 (or 12426 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 18446812 is about 4294.9752036537. The cubic root of 18446812 is about 264.2249192798.

The spelling of 18446812 in words is "eighteen million, four hundred forty-six thousand, eight hundred twelve".