18105242 has 8 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 9033244.

The previous prime is 18105229. The next prime is 18105257. The reversal of 18105242 is 24250181.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 8492 + ... + 10407.

It is an arithmetic number, because the mean of its divisors is an integer number (3402000).

Almost surely, 2^18105242 is an apocalyptic number.

18105242 is a deficient number, since it is larger than the sum of its proper divisors (9110758).

18105242 is a wasteful number, since it uses less digits than its factorization.

18105242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19380.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 18105242 is about 4255.0254993360. The cubic root of 18105242 is about 262.5839102872.

The spelling of 18105242 in words is "eighteen million, one hundred five thousand, two hundred forty-two".