13349540 has 12 divisors (see below), whose sum is σ = 28034076. Its totient is φ = 5339808.

The previous prime is 13349527. The next prime is 13349569. The reversal of 13349540 is 4594331.

13349540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9048064 + 4301476 = 3008^2 + 2074^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333719 + ... + 333758.

It is an arithmetic number, because the mean of its divisors is an integer number (2336173).

Almost surely, 2^13349540 is an apocalyptic number.

13349540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13349540 is an abundant number, since it is smaller than the sum of its proper divisors (14684536).

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

13349540 is a wasteful number, since it uses less digits than its factorization.

13349540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667486 (or 667484 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 13349540 is about 3653.7022319833. The cubic root of 13349540 is about 237.2222570392. Note that the first 4 decimals are identical.

The spelling of 13349540 in words is "thirteen million, three hundred forty-nine thousand, five hundred forty".