13172244 has 24 divisors (see below), whose sum is σ = 32353440. Its totient is φ = 4159584.

The previous prime is 13172239. The next prime is 13172251. The reversal of 13172244 is 44227131.

It is a happy number.

13172244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28659 + ... + 29114.

It is an arithmetic number, because the mean of its divisors is an integer number (1348060).

Almost surely, 2^13172244 is an apocalyptic number.

It is an amenable number.

13172244 is an abundant number, since it is smaller than the sum of its proper divisors (19181196).

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

13172244 is a wasteful number, since it uses less digits than its factorization.

13172244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57799 (or 57797 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 13172244 is about 3629.3586210238. The cubic root of 13172244 is about 236.1673858001.

Adding to 13172244 its reverse (44227131), we get a palindrome (57399375).

The spelling of 13172244 in words is "thirteen million, one hundred seventy-two thousand, two hundred forty-four".