13244816 has 40 divisors (see below), whose sum is σ = 28399224. Its totient is φ = 5944320.

The previous prime is 13244813. The next prime is 13244821. The reversal of 13244816 is 61844231.

It can be written as a sum of positive squares in 4 ways, for example, as 3610000 + 9634816 = 1900^2 + 3104^2 .

It is not an unprimeable number, because it can be changed into a prime (13244813) 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, 6836 + ... + 8556.

Almost surely, 2^13244816 is an apocalyptic number.

13244816 is a gapful number since it is divisible by the number (16) 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 13244816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14199612).

13244816 is an abundant number, since it is smaller than the sum of its proper divisors (15154408).

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

13244816 is a wasteful number, since it uses less digits than its factorization.

13244816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1773 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 13244816 is about 3639.3427978139. The cubic root of 13244816 is about 236.6003102557.

The spelling of 13244816 in words is "thirteen million, two hundred forty-four thousand, eight hundred sixteen".