18055768 has 16 divisors (see below), whose sum is σ = 35846280. Its totient is φ = 8496768.

The previous prime is 18055753. The next prime is 18055781. The reversal of 18055768 is 86755081.

It is a self number, because there is not a number n which added to its sum of digits gives 18055768.

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, 66246 + ... + 66517.

Almost surely, 2^18055768 is an apocalyptic number.

It is an amenable number.

18055768 is a deficient number, since it is larger than the sum of its proper divisors (17790512).

18055768 is a wasteful number, since it uses less digits than its factorization.

18055768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132786 (or 132782 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 18055768 is about 4249.2079261905. The cubic root of 18055768 is about 262.3445150258.

It can be divided in two parts, 180557 and 68, that added together give a square (180625 = 425²).

The spelling of 18055768 in words is "eighteen million, fifty-five thousand, seven hundred sixty-eight".