18036048 has 120 divisors (see below), whose sum is σ = 53193024. Its totient is φ = 5237760.

The previous prime is 18036047. The next prime is 18036077. The reversal of 18036048 is 84063081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18036047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 581793 + ... + 581823.

Almost surely, 2^18036048 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 18036048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26596512).

18036048 is an abundant number, since it is smaller than the sum of its proper divisors (35156976).

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

18036048 is a wasteful number, since it uses less digits than its factorization.

18036048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 18036048 is about 4246.8868598068. The cubic root of 18036048 is about 262.2489718102.

The spelling of 18036048 in words is "eighteen million, thirty-six thousand, forty-eight".