18018548 has 12 divisors (see below), whose sum is σ = 32266080. Its totient is φ = 8799672.

The previous prime is 18018529. The next prime is 18018551. The reversal of 18018548 is 84581081.

18018548 is nontrivially palindromic in base 14.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52208 + ... + 52551.

It is an arithmetic number, because the mean of its divisors is an integer number (2688840).

Almost surely, 2^18018548 is an apocalyptic number.

It is an amenable number.

18018548 is a deficient number, since it is larger than the sum of its proper divisors (14247532).

18018548 is a wasteful number, since it uses less digits than its factorization.

18018548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104806 (or 104804 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 35.

The square root of 18018548 is about 4244.8260270593. The cubic root of 18018548 is about 262.1641261329.

The spelling of 18018548 in words is "eighteen million, eighteen thousand, five hundred forty-eight".