13840144188 has 48 divisors (see below), whose sum is σ = 35434004256. Its totient is φ = 4178154240.

The previous prime is 13840144181. The next prime is 13840144189. The reversal of 13840144188 is 88144104831.

It is a super-2 number, since 2×13840144188² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13840144181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828703 + ... + 845238.

It is an arithmetic number, because the mean of its divisors is an integer number (738208422).

Almost surely, 2^13840144188 is an apocalyptic number.

It is an amenable number.

13840144188 is an abundant number, since it is smaller than the sum of its proper divisors (21593860068).

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

13840144188 is a wasteful number, since it uses less digits than its factorization.

13840144188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674014 (or 1674012 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The spelling of 13840144188 in words is "thirteen billion, eight hundred forty million, one hundred forty-four thousand, one hundred eighty-eight".