13320440430 has 128 divisors (see below), whose sum is σ = 35719833600. Its totient is φ = 3151948800.

The previous prime is 13320440377. The next prime is 13320440477. The reversal of 13320440430 is 3404402331.

It is a self number, because there is not a number n which added to its sum of digits gives 13320440430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2317360 + ... + 2323100.

It is an arithmetic number, because the mean of its divisors is an integer number (279061200).

Almost surely, 2^13320440430 is an apocalyptic number.

13320440430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13320440430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17859916800).

13320440430 is an abundant number, since it is smaller than the sum of its proper divisors (22399393170).

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

13320440430 is a wasteful number, since it uses less digits than its factorization.

13320440430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 13320440430 its reverse (3404402331), we get a palindrome (16724842761).

The spelling of 13320440430 in words is "thirteen billion, three hundred twenty million, four hundred forty thousand, four hundred thirty".