18244612 has 24 divisors (see below), whose sum is σ = 33872832. Its totient is φ = 8580000.

The previous prime is 18244609. The next prime is 18244637. The reversal of 18244612 is 21644281.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3987 + ... + 7237.

It is an arithmetic number, because the mean of its divisors is an integer number (1411368).

Almost surely, 2^18244612 is an apocalyptic number.

It is an amenable number.

18244612 is a deficient number, since it is larger than the sum of its proper divisors (15628220).

18244612 is a wasteful number, since it uses less digits than its factorization.

18244612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339 (or 3337 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 18244612 is about 4271.3712084060. The cubic root of 18244612 is about 263.2559590369.

Adding to 18244612 its reverse (21644281), we get a palindrome (39888893).

The spelling of 18244612 in words is "eighteen million, two hundred forty-four thousand, six hundred twelve".