13522224 has 40 divisors (see below), whose sum is σ = 36773440. Its totient is φ = 4269888.

The previous prime is 13522219. The next prime is 13522237. The reversal of 13522224 is 42222531.

It is a self number, because there is not a number n which added to its sum of digits gives 13522224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6502 + ... + 8325.

It is an arithmetic number, because the mean of its divisors is an integer number (919336).

Almost surely, 2^13522224 is an apocalyptic number.

It is an amenable number.

13522224 is an abundant number, since it is smaller than the sum of its proper divisors (23251216).

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

13522224 is a wasteful number, since it uses less digits than its factorization.

13522224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14857 (or 14851 counting only the distinct ones).

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

The square root of 13522224 is about 3677.2576738651. The cubic root of 13522224 is about 238.2407469062.

Adding to 13522224 its reverse (42222531), we get a palindrome (55744755).

The spelling of 13522224 in words is "thirteen million, five hundred twenty-two thousand, two hundred twenty-four".