13204342440 has 128 divisors (see below), whose sum is σ = 45204192000. Its totient is φ = 3425981184.

The previous prime is 13204342421. The next prime is 13204342441. The reversal of 13204342440 is 4424340231.

It is a happy number.

13204342440 is a `hidden beast` number, since 13 + 204 + 3 + 4 + 2 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13204342441) 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 31 ways as a sum of consecutive naturals, for example, 125260 + ... + 205179.

It is an arithmetic number, because the mean of its divisors is an integer number (353157750).

Almost surely, 2^13204342440 is an apocalyptic number.

13204342440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13204342440 is an abundant number, since it is smaller than the sum of its proper divisors (31999849560).

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

13204342440 is a wasteful number, since it uses less digits than its factorization.

13204342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330496 (or 330486 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 13204342440 its reverse (4424340231), we get a palindrome (17628682671).

The spelling of 13204342440 in words is "thirteen billion, two hundred four million, three hundred forty-two thousand, four hundred forty".