12320244 has 36 divisors (see below), whose sum is σ = 32219460. Its totient is φ = 3964800.

The previous prime is 12320239. The next prime is 12320267. The reversal of 12320244 is 44202321.

It can be written as a sum of positive squares in 2 ways, for example, as 6502500 + 5817744 = 2550^2 + 2412^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4857 + ... + 6944.

It is an arithmetic number, because the mean of its divisors is an integer number (894985).

Almost surely, 2^12320244 is an apocalyptic number.

It is an amenable number.

12320244 is an abundant number, since it is smaller than the sum of its proper divisors (19899216).

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

12320244 is a wasteful number, since it uses less digits than its factorization.

12320244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840 (or 11835 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12320244 is about 3510.0205127606. The cubic root of 12320244 is about 230.9615947846.

Adding to 12320244 its reverse (44202321), we get a palindrome (56522565).

The spelling of 12320244 in words is "twelve million, three hundred twenty thousand, two hundred forty-four".