12945744 has 100 divisors (see below), whose sum is σ = 42851424. Its totient is φ = 3696192.

The previous prime is 12945739. The next prime is 12945767. The reversal of 12945744 is 44754921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12945699 and 12945708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8359 + ... + 9785.

Almost surely, 2^12945744 is an apocalyptic number.

12945744 is a gapful number since it is divisible by the number (14) 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 12945744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21425712).

12945744 is an abundant number, since it is smaller than the sum of its proper divisors (29905680).

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

12945744 is a wasteful number, since it uses less digits than its factorization.

12945744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1439 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 12945744 is about 3598.0194552003. The cubic root of 12945744 is about 234.8058997828.

It can be divided in two parts, 12945 and 744, that added together give a square (13689 = 117²).

The spelling of 12945744 in words is "twelve million, nine hundred forty-five thousand, seven hundred forty-four".