18462212 has 12 divisors (see below), whose sum is σ = 33423180. Its totient is φ = 8912736.

The previous prime is 18462203. The next prime is 18462229. The reversal of 18462212 is 21226481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8375236 + 10086976 = 2894^2 + 3176^2 .

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, 79463 + ... + 79694.

It is an arithmetic number, because the mean of its divisors is an integer number (2785265).

Almost surely, 2^18462212 is an apocalyptic number.

It is an amenable number.

18462212 is a deficient number, since it is larger than the sum of its proper divisors (14960968).

18462212 is a wasteful number, since it uses less digits than its factorization.

18462212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159190 (or 159188 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 18462212 is about 4296.7676222947. The cubic root of 18462212 is about 264.2984266869.

Adding to 18462212 its reverse (21226481), we get a palindrome (39688693).

The spelling of 18462212 in words is "eighteen million, four hundred sixty-two thousand, two hundred twelve".