18103822 has 8 divisors (see below), whose sum is σ = 29624472. Its totient is φ = 8229000.

The previous prime is 18103819. The next prime is 18103823. The reversal of 18103822 is 22830181.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18103823) 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 3 ways as a sum of consecutive naturals, for example, 411429 + ... + 411472.

It is an arithmetic number, because the mean of its divisors is an integer number (3703059).

Almost surely, 2^18103822 is an apocalyptic number.

18103822 is a deficient number, since it is larger than the sum of its proper divisors (11520650).

18103822 is a wasteful number, since it uses less digits than its factorization.

18103822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822914.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18103822 is about 4254.8586345494. The cubic root of 18103822 is about 262.5770452606.

The spelling of 18103822 in words is "eighteen million, one hundred three thousand, eight hundred twenty-two".