18134208 has 84 divisors (see below), whose sum is σ = 54747160. Its totient is φ = 5723136.

The previous prime is 18134201. The next prime is 18134243. The reversal of 18134208 is 80243181.

It is not an unprimeable number, because it can be changed into a prime (18134201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10116 + ... + 11772.

Almost surely, 2^18134208 is an apocalyptic number.

18134208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18134208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27373580).

18134208 is an abundant number, since it is smaller than the sum of its proper divisors (36612952).

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

18134208 is a wasteful number, since it uses less digits than its factorization.

18134208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 18134208 is about 4258.4278789243. The cubic root of 18134208 is about 262.7238688867.

Adding to 18134208 its reverse (80243181), we get a palindrome (98377389).

The spelling of 18134208 in words is "eighteen million, one hundred thirty-four thousand, two hundred eight".