13530344408 has 64 divisors (see below), whose sum is σ = 29802427200. Its totient is φ = 5637219840.

The previous prime is 13530344383. The next prime is 13530344417. The reversal of 13530344408 is 80444303531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3539138 + ... + 3542958.

It is an arithmetic number, because the mean of its divisors is an integer number (465662925).

Almost surely, 2^13530344408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13530344408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14901213600).

13530344408 is an abundant number, since it is smaller than the sum of its proper divisors (16272082792).

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

13530344408 is a wasteful number, since it uses less digits than its factorization.

13530344408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580 (or 5576 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 13530344408 its reverse (80444303531), we get a palindrome (93974647939).

The spelling of 13530344408 in words is "thirteen billion, five hundred thirty million, three hundred forty-four thousand, four hundred eight".