12197744 has 40 divisors (see below), whose sum is σ = 25675440. Its totient is φ = 5613504.

The previous prime is 12197737. The next prime is 12197747. The reversal of 12197744 is 44779121.

12197744 = T₇₂ + T₇₃ + ... + T₄₁₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197747) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34979 + ... + 35325.

It is an arithmetic number, because the mean of its divisors is an integer number (641886).

Almost surely, 2^12197744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12197744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12837720).

12197744 is an abundant number, since it is smaller than the sum of its proper divisors (13477696).

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

12197744 is an equidigital number, since it uses as much as digits as its factorization.

12197744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 362 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 12197744 is about 3492.5268789231. The cubic root of 12197744 is about 230.1935610667.

The spelling of 12197744 in words is "twelve million, one hundred ninety-seven thousand, seven hundred forty-four".