18135304 has 16 divisors (see below), whose sum is σ = 37095120. Its totient is φ = 8243280.

The previous prime is 18135301. The next prime is 18135347. The reversal of 18135304 is 40353181.

It is not an unprimeable number, because it can be changed into a prime (18135301) 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, 102954 + ... + 103129.

It is an arithmetic number, because the mean of its divisors is an integer number (2318445).

Almost surely, 2^18135304 is an apocalyptic number.

It is an amenable number.

18135304 is an abundant number, since it is smaller than the sum of its proper divisors (18959816).

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

18135304 is a wasteful number, since it uses less digits than its factorization.

18135304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206100 (or 206096 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 18135304 is about 4258.5565629683. The cubic root of 18135304 is about 262.7291616380.

Adding to 18135304 its reverse (40353181), we get a palindrome (58488485).

It can be divided in two parts, 1813 and 5304, that added together give a palindrome (7117).

The spelling of 18135304 in words is "eighteen million, one hundred thirty-five thousand, three hundred four".