13204425330440 has 128 divisors (see below), whose sum is σ = 30282741648000. Its totient is φ = 5180366174208.

The previous prime is 13204425330431. The next prime is 13204425330449. The reversal of 13204425330440 is 4403352440231.

It is an interprime number because it is at equal distance from previous prime (13204425330431) and next prime (13204425330449).

It is a self number, because there is not a number n which added to its sum of digits gives 13204425330440.

It is not an unprimeable number, because it can be changed into a prime (13204425330449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2397750167 + ... + 2397755673.

It is an arithmetic number, because the mean of its divisors is an integer number (236583919125).

Almost surely, 2^{13204425330440} is an apocalyptic number.

13204425330440 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 13204425330440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15141370824000).

13204425330440 is an abundant number, since it is smaller than the sum of its proper divisors (17078316317560).

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

13204425330440 is a wasteful number, since it uses less digits than its factorization.

13204425330440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719 (or 7715 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 13204425330440 its reverse (4403352440231), we get a palindrome (17607777770671).

The spelling of 13204425330440 in words is "thirteen trillion, two hundred four billion, four hundred twenty-five million, three hundred thirty thousand, four hundred forty".