13240969240 has 64 divisors (see below), whose sum is σ = 30780668160. Its totient is φ = 5120962560.

The previous prime is 13240969211. The next prime is 13240969249. The reversal of 13240969240 is 4296904231.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 13240969193 and 13240969202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240969249) 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 15 ways as a sum of consecutive naturals, for example, 1604164 + ... + 1612396.

It is an arithmetic number, because the mean of its divisors is an integer number (480947940).

Almost surely, 2^13240969240 is an apocalyptic number.

13240969240 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 13240969240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15390334080).

13240969240 is an abundant number, since it is smaller than the sum of its proper divisors (17539698920).

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

13240969240 is a wasteful number, since it uses less digits than its factorization.

13240969240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9572 (or 9568 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 13240969240 in words is "thirteen billion, two hundred forty million, nine hundred sixty-nine thousand, two hundred forty".