13247340 has 24 divisors (see below), whose sum is σ = 37092720. Its totient is φ = 3532608.

The previous prime is 13247321. The next prime is 13247347. The reversal of 13247340 is 4374231.

It is a self number, because there is not a number n which added to its sum of digits gives 13247340.

It is not an unprimeable number, because it can be changed into a prime (13247347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110335 + ... + 110454.

It is an arithmetic number, because the mean of its divisors is an integer number (1545530).

Almost surely, 2^13247340 is an apocalyptic number.

13247340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13247340 is an abundant number, since it is smaller than the sum of its proper divisors (23845380).

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

13247340 is a wasteful number, since it uses less digits than its factorization.

13247340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220801 (or 220799 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 13247340 is about 3639.6895472004. The cubic root of 13247340 is about 236.6153385569.

The spelling of 13247340 in words is "thirteen million, two hundred forty-seven thousand, three hundred forty".