18324211 has 4 divisors (see below), whose sum is σ = 18358624. Its totient is φ = 18289800.

The previous prime is 18324197. The next prime is 18324221. The reversal of 18324211 is 11242381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18324211 - 2⁵ = 18324179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18324221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16395 + ... + 17476.

It is an arithmetic number, because the mean of its divisors is an integer number (4589656).

Almost surely, 2^18324211 is an apocalyptic number.

18324211 is a deficient number, since it is larger than the sum of its proper divisors (34413).

18324211 is an equidigital number, since it uses as much as digits as its factorization.

18324211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34412.

The product of its digits is 384, while the sum is 22.

The square root of 18324211 is about 4280.6788013118. The cubic root of 18324211 is about 263.6382547373.

Adding to 18324211 its reverse (11242381), we get a palindrome (29566592).

The spelling of 18324211 in words is "eighteen million, three hundred twenty-four thousand, two hundred eleven".