13224204 has 72 divisors (see below), whose sum is σ = 38668448. Its totient is φ = 3732480.

The previous prime is 13224193. The next prime is 13224221. The reversal of 13224204 is 40242231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24174 + ... + 24714.

Almost surely, 2^13224204 is an apocalyptic number.

13224204 is a gapful number since it is divisible by the number (14) 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 13224204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19334224).

13224204 is an abundant number, since it is smaller than the sum of its proper divisors (25444244).

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

13224204 is a wasteful number, since it uses less digits than its factorization.

13224204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 13224204 is about 3636.5098652417. The cubic root of 13224204 is about 236.4775115799.

Adding to 13224204 its reverse (40242231), we get a palindrome (53466435).

It can be divided in two parts, 132 and 24204, that added together give a square (24336 = 156²).

The spelling of 13224204 in words is "thirteen million, two hundred twenty-four thousand, two hundred four".