12312244 has 12 divisors (see below), whose sum is σ = 24624544. Its totient is φ = 5276664.

The previous prime is 12312241. The next prime is 12312263. The reversal of 12312244 is 44221321.

12312244 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312241) 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, 219834 + ... + 219889.

Almost surely, 2^12312244 is an apocalyptic number.

12312244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12312244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12312244 is a wasteful number, since it uses less digits than its factorization.

12312244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439734 (or 439732 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 12312244 is about 3508.8807332253. The cubic root of 12312244 is about 230.9115932633.

Adding to 12312244 its reverse (44221321), we get a palindrome (56533565).

The spelling of 12312244 in words is "twelve million, three hundred twelve thousand, two hundred forty-four".