18116833 has 12 divisors (see below), whose sum is σ = 21083520. Its totient is φ = 15247440.

The previous prime is 18116827. The next prime is 18116863. The reversal of 18116833 is 33861181.

It is not a de Polignac number, because 18116833 - 2⁹ = 18116321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18116795 and 18116804.

It is not an unprimeable number, because it can be changed into a prime (18116863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100003 + ... + 100183.

It is an arithmetic number, because the mean of its divisors is an integer number (1756960).

Almost surely, 2^18116833 is an apocalyptic number.

It is an amenable number.

18116833 is a deficient number, since it is larger than the sum of its proper divisors (2966687).

18116833 is an frugal number, since it uses more digits than its factorization.

18116833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 267 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 18116833 is about 4256.3873179024. The cubic root of 18116833 is about 262.6399338562.

The spelling of 18116833 in words is "eighteen million, one hundred sixteen thousand, eight hundred thirty-three".