13313412 has 72 divisors (see below), whose sum is σ = 40150656. Its totient is φ = 3636864.

The previous prime is 13313411. The next prime is 13313429. The reversal of 13313412 is 21431331.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13313411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4648 + ... + 6944.

It is an arithmetic number, because the mean of its divisors is an integer number (557648).

Almost surely, 2^13313412 is an apocalyptic number.

13313412 is a gapful number since it is divisible by the number (12) 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 13313412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20075328).

13313412 is an abundant number, since it is smaller than the sum of its proper divisors (26837244).

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

13313412 is a wasteful number, since it uses less digits than its factorization.

13313412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337 (or 2332 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13313412 is about 3648.7548561119. The cubic root of 13313412 is about 237.0080646724.

Adding to 13313412 its reverse (21431331), we get a palindrome (34744743).

The spelling of 13313412 in words is "thirteen million, three hundred thirteen thousand, four hundred twelve".