18242833 has 8 divisors (see below), whose sum is σ = 21034368. Its totient is φ = 15497664.

The previous prime is 18242803. The next prime is 18242837. The reversal of 18242833 is 33824281.

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

It is not a de Polignac number, because 18242833 - 2²¹ = 16145681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18242795 and 18242804.

It is not an unprimeable number, because it can be changed into a prime (18242837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10741 + ... + 12322.

It is an arithmetic number, because the mean of its divisors is an integer number (2629296).

Almost surely, 2^18242833 is an apocalyptic number.

It is an amenable number.

18242833 is a deficient number, since it is larger than the sum of its proper divisors (2791535).

18242833 is a wasteful number, since it uses less digits than its factorization.

18242833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23183.

The product of its digits is 9216, while the sum is 31.

The square root of 18242833 is about 4271.1629563855. The cubic root of 18242833 is about 263.2474022171.

The spelling of 18242833 in words is "eighteen million, two hundred forty-two thousand, eight hundred thirty-three".