13344220 has 12 divisors (see below), whose sum is σ = 28022904. Its totient is φ = 5337680.

The previous prime is 13344217. The next prime is 13344223. The reversal of 13344220 is 2244331.

It is an interprime number because it is at equal distance from previous prime (13344217) and next prime (13344223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13344223) 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, 333586 + ... + 333625.

It is an arithmetic number, because the mean of its divisors is an integer number (2335242).

Almost surely, 2^13344220 is an apocalyptic number.

13344220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13344220 is an abundant number, since it is smaller than the sum of its proper divisors (14678684).

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

13344220 is a wasteful number, since it uses less digits than its factorization.

13344220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667220 (or 667218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13344220 is about 3652.9741307598. The cubic root of 13344220 is about 237.1907405952.

Adding to 13344220 its reverse (2244331), we get a palindrome (15588551).

The spelling of 13344220 in words is "thirteen million, three hundred forty-four thousand, two hundred twenty".