18116842 has 8 divisors (see below), whose sum is σ = 28605600. Its totient is φ = 8581644.

The previous prime is 18116827. The next prime is 18116863. The reversal of 18116842 is 24861181.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238342 + ... + 238417.

It is an arithmetic number, because the mean of its divisors is an integer number (3575700).

Almost surely, 2^18116842 is an apocalyptic number.

18116842 is a deficient number, since it is larger than the sum of its proper divisors (10488758).

18116842 is a wasteful number, since it uses less digits than its factorization.

18116842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476780.

The product of its digits is 3072, while the sum is 31.

The square root of 18116842 is about 4256.3883751368. The cubic root of 18116842 is about 262.6399773473.

The spelling of 18116842 in words is "eighteen million, one hundred sixteen thousand, eight hundred forty-two".