18285536 has 24 divisors (see below), whose sum is σ = 37162944. Its totient is φ = 8847360.

The previous prime is 18285521. The next prime is 18285539. The reversal of 18285536 is 63558281.

It is a self number, because there is not a number n which added to its sum of digits gives 18285536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18285539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8225 + ... + 10208.

It is an arithmetic number, because the mean of its divisors is an integer number (1548456).

Almost surely, 2^18285536 is an apocalyptic number.

18285536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18285536 is an abundant number, since it is smaller than the sum of its proper divisors (18877408).

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

18285536 is a wasteful number, since it uses less digits than its factorization.

18285536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18474 (or 18466 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 18285536 is about 4276.1590241711. The cubic root of 18285536 is about 263.4526461767.

The spelling of 18285536 in words is "eighteen million, two hundred eighty-five thousand, five hundred thirty-six".