12816234 has 24 divisors (see below), whose sum is σ = 28018692. Its totient is φ = 4233600.

The previous prime is 12816211. The next prime is 12816247. The reversal of 12816234 is 43261821.

It can be written as a sum of positive squares in 2 ways, for example, as 11923209 + 893025 = 3453^2 + 945^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12816198 and 12816207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1117 + ... + 5184.

Almost surely, 2^12816234 is an apocalyptic number.

12816234 is an abundant number, since it is smaller than the sum of its proper divisors (15202458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12816234 is a wasteful number, since it uses less digits than its factorization.

12816234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422 (or 6419 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 12816234 is about 3579.9768155674. The cubic root of 12816234 is about 234.0202699951.

The spelling of 12816234 in words is "twelve million, eight hundred sixteen thousand, two hundred thirty-four".