18448208 has 20 divisors (see below), whose sum is σ = 37298208. Its totient is φ = 8822880.

The previous prime is 18448189. The next prime is 18448211. The reversal of 18448208 is 80284481.

It is a super-2 number, since 2×18448208² = 680672756822528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24698 + ... + 25433.

Almost surely, 2^18448208 is an apocalyptic number.

It is an amenable number.

18448208 is an abundant number, since it is smaller than the sum of its proper divisors (18850000).

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

18448208 is a wasteful number, since it uses less digits than its factorization.

18448208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50162 (or 50156 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 18448208 is about 4295.1377160692. The cubic root of 18448208 is about 264.2315843644.

The spelling of 18448208 in words is "eighteen million, four hundred forty-eight thousand, two hundred eight".