13440726400 has 48 divisors (see below), whose sum is σ = 33202802340. Its totient is φ = 5376289280.

The previous prime is 13440726379. The next prime is 13440726401. The reversal of 13440726400 is 462704431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440726401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2096914 + ... + 2103313.

Almost surely, 2^13440726400 is an apocalyptic number.

13440726400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440726400 is an abundant number, since it is smaller than the sum of its proper divisors (19762075940).

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

13440726400 is an equidigital number, since it uses as much as digits as its factorization.

13440726400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200251 (or 4200234 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 13440726400 in words is "thirteen billion, four hundred forty million, seven hundred twenty-six thousand, four hundred".