13388107240 has 32 divisors (see below), whose sum is σ = 31895198280. Its totient is φ = 5040228352.

The previous prime is 13388107231. The next prime is 13388107247. The reversal of 13388107240 is 4270188331.

It can be written as a sum of positive squares in 4 ways, for example, as 10838059236 + 2550048004 = 104106^2 + 50498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13388107240.

It is not an unprimeable number, because it can be changed into a prime (13388107247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9843517 + ... + 9844876.

Almost surely, 2^13388107240 is an apocalyptic number.

13388107240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13388107240 is an abundant number, since it is smaller than the sum of its proper divisors (18507091040).

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

13388107240 is a wasteful number, since it uses less digits than its factorization.

13388107240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19688421 (or 19688417 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 13388107240 in words is "thirteen billion, three hundred eighty-eight million, one hundred seven thousand, two hundred forty".