18678316 has 12 divisors (see below), whose sum is σ = 32783688. Its totient is φ = 9311552.

The previous prime is 18678307. The next prime is 18678343. The reversal of 18678316 is 61387681.

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, 5341 + ... + 8116.

It is an arithmetic number, because the mean of its divisors is an integer number (2731974).

Almost surely, 2^18678316 is an apocalyptic number.

It is an amenable number.

18678316 is a deficient number, since it is larger than the sum of its proper divisors (14105372).

18678316 is a wasteful number, since it uses less digits than its factorization.

18678316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13808 (or 13806 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 18678316 is about 4321.8417370376. The cubic root of 18678316 is about 265.3256516270.

The spelling of 18678316 in words is "eighteen million, six hundred seventy-eight thousand, three hundred sixteen".