12312444 has 12 divisors (see below), whose sum is σ = 28729064. Its totient is φ = 4104144.

The previous prime is 12312439. The next prime is 12312457. The reversal of 12312444 is 44421321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12312444.

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, 513007 + ... + 513030.

Almost surely, 2^12312444 is an apocalyptic number.

It is an amenable number.

12312444 is an abundant number, since it is smaller than the sum of its proper divisors (16416620).

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

12312444 is a wasteful number, since it uses less digits than its factorization.

12312444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026044 (or 1026042 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 12312444 is about 3508.9092322259. The cubic root of 12312444 is about 230.9128435653.

Adding to 12312444 its reverse (44421321), we get a palindrome (56733765).

The spelling of 12312444 in words is "twelve million, three hundred twelve thousand, four hundred forty-four".