18052208 has 20 divisors (see below), whose sum is σ = 35232120. Its totient is φ = 8960064.

The previous prime is 18052187. The next prime is 18052213. The reversal of 18052208 is 80225081.

It is a congruent number.

It is an unprimeable number.

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, 1835 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (1761606).

Almost surely, 2^18052208 is an apocalyptic number.

It is an amenable number.

18052208 is a deficient number, since it is larger than the sum of its proper divisors (17179912).

18052208 is a wasteful number, since it uses less digits than its factorization.

18052208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8264 (or 8258 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 18052208 is about 4248.7890039398. The cubic root of 18052208 is about 262.3272720066.

Adding to 18052208 its reverse (80225081), we get a palindrome (98277289).

The spelling of 18052208 in words is "eighteen million, fifty-two thousand, two hundred eight".