18055104 has 56 divisors (see below), whose sum is σ = 48085248. Its totient is φ = 5978880.

The previous prime is 18055099. The next prime is 18055151. The reversal of 18055104 is 40155081.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 51859 + ... + 52205.

Almost surely, 2^18055104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18055104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24042624).

18055104 is an abundant number, since it is smaller than the sum of its proper divisors (30030144).

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

18055104 is a wasteful number, since it uses less digits than its factorization.

18055104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 18055104 is about 4249.1297932636. The cubic root of 18055104 is about 262.3412990841.

The spelling of 18055104 in words is "eighteen million, fifty-five thousand, one hundred four".