18035868 has 12 divisors (see below), whose sum is σ = 42083720. Its totient is φ = 6011952.

The previous prime is 18035851. The next prime is 18035869. The reversal of 18035868 is 86853081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18035869) by changing a digit.

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, 751483 + ... + 751506.

Almost surely, 2^18035868 is an apocalyptic number.

It is an amenable number.

18035868 is an abundant number, since it is smaller than the sum of its proper divisors (24047852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18035868 is a wasteful number, since it uses less digits than its factorization.

18035868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502996 (or 1502994 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 18035868 is about 4246.8656677602. The cubic root of 18035868 is about 262.2480993912.

The spelling of 18035868 in words is "eighteen million, thirty-five thousand, eight hundred sixty-eight".