18508104 has 48 divisors (see below), whose sum is σ = 53078220. Its totient is φ = 5806080.

The previous prime is 18508093. The next prime is 18508117. The reversal of 18508104 is 40180581.

It can be written as a sum of positive squares in 2 ways, for example, as 18507204 + 900 = 4302^2 + 30^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6337 + ... + 8784.

Almost surely, 2^18508104 is an apocalyptic number.

It is an amenable number.

18508104 is an abundant number, since it is smaller than the sum of its proper divisors (34570116).

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

18508104 is a wasteful number, since it uses less digits than its factorization.

18508104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15150 (or 15143 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 18508104 is about 4302.1046012388. The cubic root of 18508104 is about 264.5172366415.

Adding to 18508104 its reverse (40180581), we get a palindrome (58688685).

The spelling of 18508104 in words is "eighteen million, five hundred eight thousand, one hundred four".