18075568 has 40 divisors (see below), whose sum is σ = 40275200. Its totient is φ = 7698240.

The previous prime is 18075557. The next prime is 18075569. The reversal of 18075568 is 86557081.

It is a self number, because there is not a number n which added to its sum of digits gives 18075568.

It is not an unprimeable number, because it can be changed into a prime (18075569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21883 + ... + 22693.

It is an arithmetic number, because the mean of its divisors is an integer number (1006880).

Almost surely, 2^18075568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18075568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20137600).

18075568 is an abundant number, since it is smaller than the sum of its proper divisors (22199632).

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

18075568 is a wasteful number, since it uses less digits than its factorization.

18075568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1019 counting only the distinct ones).

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

The square root of 18075568 is about 4251.5371337906. The cubic root of 18075568 is about 262.4403758760.

The spelling of 18075568 in words is "eighteen million, seventy-five thousand, five hundred sixty-eight".