13311340 has 108 divisors (see below), whose sum is σ = 35277984. Its totient is φ = 4204032.

The previous prime is 13311317. The next prime is 13311349. The reversal of 13311340 is 4311331.

13311340 = T₇₂₉ + T₇₃₀ + ... + T₇₇₅.

It is not an unprimeable number, because it can be changed into a prime (13311349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 283197 + ... + 283243.

It is an arithmetic number, because the mean of its divisors is an integer number (326648).

Almost surely, 2^13311340 is an apocalyptic number.

13311340 is a gapful number since it is divisible by the number (10) 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 13311340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17638992).

13311340 is an abundant number, since it is smaller than the sum of its proper divisors (21966644).

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

13311340 is a wasteful number, since it uses less digits than its factorization.

13311340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13311340 is about 3648.4709125879. The cubic root of 13311340 is about 236.9957686462.

Adding to 13311340 its reverse (4311331), we get a palindrome (17622671).

Subtracting from 13311340 its reverse (4311331), we obtain a palindrome (9000009).

The spelling of 13311340 in words is "thirteen million, three hundred eleven thousand, three hundred forty".