18434211 has 8 divisors (see below), whose sum is σ = 24601680. Its totient is φ = 12278112.

The previous prime is 18434209. The next prime is 18434249. The reversal of 18434211 is 11243481.

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

It is not a de Polignac number, because 18434211 - 2¹ = 18434209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18434711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245 + ... + 6473.

It is an arithmetic number, because the mean of its divisors is an integer number (3075210).

Almost surely, 2^18434211 is an apocalyptic number.

18434211 is a deficient number, since it is larger than the sum of its proper divisors (6167469).

18434211 is a wasteful number, since it uses less digits than its factorization.

18434211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685.

The product of its digits is 768, while the sum is 24.

The square root of 18434211 is about 4293.5080062811. The cubic root of 18434211 is about 264.1647416437.

Adding to 18434211 its reverse (11243481), we get a palindrome (29677692).

The spelling of 18434211 in words is "eighteen million, four hundred thirty-four thousand, two hundred eleven".