13440131403400 has 96 divisors (see below), whose sum is σ = 34125993921600. Its totient is φ = 4892615481600.

The previous prime is 13440131403397. The next prime is 13440131403401. The reversal of 13440131403400 is 430413104431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13440131403401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36218790 + ... + 36587989.

It is an arithmetic number, because the mean of its divisors is an integer number (355479103350).

Almost surely, 2^{13440131403400} is an apocalyptic number.

13440131403400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440131403400 is an abundant number, since it is smaller than the sum of its proper divisors (20685862518200).

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

13440131403400 is a wasteful number, since it uses less digits than its factorization.

13440131403400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72806879 (or 72806870 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13440131403400 its reverse (430413104431), we get a palindrome (13870544507831).

The spelling of 13440131403400 in words is "thirteen trillion, four hundred forty billion, one hundred thirty-one million, four hundred three thousand, four hundred".