18789412 has 12 divisors (see below), whose sum is σ = 32924080. Its totient is φ = 9382536.

The previous prime is 18789391. The next prime is 18789431. The reversal of 18789412 is 21498781.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039 + ... + 6217.

Almost surely, 2^18789412 is an apocalyptic number.

It is an amenable number.

18789412 is a deficient number, since it is larger than the sum of its proper divisors (14134668).

18789412 is a wasteful number, since it uses less digits than its factorization.

18789412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090 (or 6088 counting only the distinct ones).

The product of its digits is 32256, while the sum is 40.

The square root of 18789412 is about 4334.6755357235. The cubic root of 18789412 is about 265.8506520252.

The spelling of 18789412 in words is "eighteen million, seven hundred eighty-nine thousand, four hundred twelve".