12244400 has 60 divisors (see below), whose sum is σ = 33627312. Its totient is φ = 4197120.

The previous prime is 12244391. The next prime is 12244423. The reversal of 12244400 is 444221.

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, 614 + ... + 4986.

Almost surely, 2^12244400 is an apocalyptic number.

12244400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12244400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16813656).

12244400 is an abundant number, since it is smaller than the sum of its proper divisors (21382912).

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

12244400 is a wasteful number, since it uses less digits than its factorization.

12244400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398 (or 4387 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 12244400 is about 3499.1999085505. The cubic root of 12244400 is about 230.4866821152.

Adding to 12244400 its reverse (444221), we get a palindrome (12688621).

The spelling of 12244400 in words is "twelve million, two hundred forty-four thousand, four hundred".