18481104 has 30 divisors (see below), whose sum is σ = 51721826. Its totient is φ = 6160320.

The previous prime is 18481097. The next prime is 18481157. The reversal of 18481104 is 40118481.

It can be written as a sum of positive squares in only one way, i.e., 18045504 + 435600 = 4248^2 + 660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64027 + ... + 64314.

Almost surely, 2^18481104 is an apocalyptic number.

It is an amenable number.

18481104 is an abundant number, since it is smaller than the sum of its proper divisors (33240722).

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

18481104 is a wasteful number, since it uses less digits than its factorization.

18481104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128355 (or 128346 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 18481104 is about 4298.9654569443. The cubic root of 18481104 is about 264.3885463273.

Adding to 18481104 its reverse (40118481), we get a palindrome (58599585).

The spelling of 18481104 in words is "eighteen million, four hundred eighty-one thousand, one hundred four".