18018348 has 12 divisors (see below), whose sum is σ = 42042840. Its totient is φ = 6006112.

The previous prime is 18018331. The next prime is 18018349. The reversal of 18018348 is 84381081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (18018349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750753 + ... + 750776.

It is an arithmetic number, because the mean of its divisors is an integer number (3503570).

Almost surely, 2^18018348 is an apocalyptic number.

It is an amenable number.

18018348 is an abundant number, since it is smaller than the sum of its proper divisors (24024492).

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

18018348 is a wasteful number, since it uses less digits than its factorization.

18018348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501536 (or 1501534 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 18018348 is about 4244.8024689024. The cubic root of 18018348 is about 262.1631561505.

It can be divided in two parts, 180 and 18348, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 18018348 in words is "eighteen million, eighteen thousand, three hundred forty-eight".