13306224 has 20 divisors (see below), whose sum is σ = 34374536. Its totient is φ = 4435392.

The previous prime is 13306219. The next prime is 13306229. The reversal of 13306224 is 42260331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13306219) and next prime (13306229).

It is a self number, because there is not a number n which added to its sum of digits gives 13306224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13306229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138559 + ... + 138654.

Almost surely, 2^13306224 is an apocalyptic number.

It is an amenable number.

13306224 is an abundant number, since it is smaller than the sum of its proper divisors (21068312).

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

13306224 is a wasteful number, since it uses less digits than its factorization.

13306224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277224 (or 277218 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 13306224 is about 3647.7697295745. The cubic root of 13306224 is about 236.9654029150.

Adding to 13306224 its reverse (42260331), we get a palindrome (55566555).

It can be divided in two parts, 13306 and 224, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 13306224 in words is "thirteen million, three hundred six thousand, two hundred twenty-four".