13305224 has 32 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 6310656.

The previous prime is 13305223. The next prime is 13305239. The reversal of 13305224 is 42250331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13305196 and 13305205.

It is not an unprimeable number, because it can be changed into a prime (13305221) 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, 30512 + ... + 30944.

It is an arithmetic number, because the mean of its divisors is an integer number (820260).

Almost surely, 2^13305224 is an apocalyptic number.

It is an amenable number.

13305224 is a deficient number, since it is larger than the sum of its proper divisors (12943096).

13305224 is a wasteful number, since it uses less digits than its factorization.

13305224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13305224 is about 3647.6326569434. The cubic root of 13305224 is about 236.9594665618.

Adding to 13305224 its reverse (42250331), we get a palindrome (55555555).

The spelling of 13305224 in words is "thirteen million, three hundred five thousand, two hundred twenty-four".