12752272 has 40 divisors (see below), whose sum is σ = 27343736. Its totient is φ = 5723136.

The previous prime is 12752251. The next prime is 12752273. The reversal of 12752272 is 27225721.

It can be written as a sum of positive squares in 4 ways, for example, as 1354896 + 11397376 = 1164^2 + 3376^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12752272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12752273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6868 + ... + 8524.

Almost surely, 2^12752272 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 12752272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13671868).

12752272 is an abundant number, since it is smaller than the sum of its proper divisors (14591464).

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

12752272 is a wasteful number, since it uses less digits than its factorization.

12752272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1709 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 12752272 is about 3571.0323437348. The cubic root of 12752272 is about 233.6303121045.

Adding to 12752272 its reverse (27225721), we get a palindrome (39977993).

The spelling of 12752272 in words is "twelve million, seven hundred fifty-two thousand, two hundred seventy-two".