18324212 has 12 divisors (see below), whose sum is σ = 32849796. Its totient is φ = 8938560.

The previous prime is 18324197. The next prime is 18324221. The reversal of 18324212 is 21242381.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5550736 + 12773476 = 2356^2 + 3574^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55703 + ... + 56030.

It is an arithmetic number, because the mean of its divisors is an integer number (2737483).

Almost surely, 2^18324212 is an apocalyptic number.

It is an amenable number.

18324212 is a deficient number, since it is larger than the sum of its proper divisors (14525584).

18324212 is a wasteful number, since it uses less digits than its factorization.

18324212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111778 (or 111776 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 18324212 is about 4280.6789181157. The cubic root of 18324212 is about 263.6382595331.

Adding to 18324212 its reverse (21242381), we get a palindrome (39566593).

The spelling of 18324212 in words is "eighteen million, three hundred twenty-four thousand, two hundred twelve".