13505340 has 24 divisors (see below), whose sum is σ = 37815120. Its totient is φ = 3601408.

The previous prime is 13505321. The next prime is 13505353. The reversal of 13505340 is 4350531.

13505340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112485 + ... + 112604.

It is an arithmetic number, because the mean of its divisors is an integer number (1575630).

Almost surely, 2^13505340 is an apocalyptic number.

13505340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13505340 is an abundant number, since it is smaller than the sum of its proper divisors (24309780).

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

13505340 is a wasteful number, since it uses less digits than its factorization.

13505340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225101 (or 225099 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 13505340 is about 3674.9612242852. The cubic root of 13505340 is about 238.1415489219.

Adding to 13505340 its reverse (4350531), we get a palindrome (17855871).

The spelling of 13505340 in words is "thirteen million, five hundred five thousand, three hundred forty".