13502244 has 36 divisors (see below), whose sum is σ = 36650544. Its totient is φ = 3857616.

The previous prime is 13502201. The next prime is 13502249. The reversal of 13502244 is 44220531.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13502244.

It is not an unprimeable number, because it can be changed into a prime (13502249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10894 + ... + 12069.

Almost surely, 2^13502244 is an apocalyptic number.

13502244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13502244 is an abundant number, since it is smaller than the sum of its proper divisors (23148300).

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

13502244 is a wasteful number, since it uses less digits than its factorization.

13502244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22984 (or 22975 counting only the distinct ones).

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

The square root of 13502244 is about 3674.5399712073. The cubic root of 13502244 is about 238.1233501308.

Adding to 13502244 its reverse (44220531), we get a palindrome (57722775).

The spelling of 13502244 in words is "thirteen million, five hundred two thousand, two hundred forty-four".