13205244 has 24 divisors (see below), whose sum is σ = 33182800. Its totient is φ = 4063104.

The previous prime is 13205207. The next prime is 13205249. The reversal of 13205244 is 44250231.

It is a self number, because there is not a number n which added to its sum of digits gives 13205244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13205249) 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, 42169 + ... + 42480.

Almost surely, 2^13205244 is an apocalyptic number.

It is an amenable number.

13205244 is an abundant number, since it is smaller than the sum of its proper divisors (19977556).

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

13205244 is a wasteful number, since it uses less digits than its factorization.

13205244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84669 (or 84667 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13205244 is about 3633.9020350031. The cubic root of 13205244 is about 236.3644421884.

Adding to 13205244 its reverse (44250231), we get a palindrome (57455475).

The spelling of 13205244 in words is "thirteen million, two hundred five thousand, two hundred forty-four".