18016242 has 16 divisors (see below), whose sum is σ = 36079392. Its totient is φ = 5997600.

The previous prime is 18016223. The next prime is 18016249. The reversal of 18016242 is 24261081.

It is not an unprimeable number, because it can be changed into a prime (18016249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4878 + ... + 7734.

It is an arithmetic number, because the mean of its divisors is an integer number (2254962).

Almost surely, 2^18016242 is an apocalyptic number.

18016242 is an abundant number, since it is smaller than the sum of its proper divisors (18063150).

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

18016242 is a wasteful number, since it uses less digits than its factorization.

18016242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18016242 is about 4244.5543935730. The cubic root of 18016242 is about 262.1529418009.

The spelling of 18016242 in words is "eighteen million, sixteen thousand, two hundred forty-two".