13540022244 has 72 divisors (see below), whose sum is σ = 39175456320. Its totient is φ = 3862660032.

The previous prime is 13540022219. The next prime is 13540022257. The reversal of 13540022244 is 44222004531.

13540022244 is a `hidden beast` number, since 1 + 35 + 400 + 2 + 224 + 4 = 666.

13540022244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125302 + ... + 206834.

It is an arithmetic number, because the mean of its divisors is an integer number (544103560).

Almost surely, 2^13540022244 is an apocalyptic number.

13540022244 is a gapful number since it is divisible by the number (14) 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 13540022244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19587728160).

13540022244 is an abundant number, since it is smaller than the sum of its proper divisors (25635434076).

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

13540022244 is a wasteful number, since it uses less digits than its factorization.

13540022244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82209 (or 82204 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 13540022244 its reverse (44222004531), we get a palindrome (57762026775).

The spelling of 13540022244 in words is "thirteen billion, five hundred forty million, twenty-two thousand, two hundred forty-four".