13440123340 has 48 divisors (see below), whose sum is σ = 32308782912. Its totient is φ = 4600544256.

The previous prime is 13440123329. The next prime is 13440123401. The reversal of 13440123340 is 4332104431.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8584 + ... + 164176.

It is an arithmetic number, because the mean of its divisors is an integer number (673099644).

Almost surely, 2^13440123340 is an apocalyptic number.

13440123340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440123340 is an abundant number, since it is smaller than the sum of its proper divisors (18868659572).

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

13440123340 is a wasteful number, since it uses less digits than its factorization.

13440123340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156226 (or 156224 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13440123340 its reverse (4332104431), we get a palindrome (17772227771).

The spelling of 13440123340 in words is "thirteen billion, four hundred forty million, one hundred twenty-three thousand, three hundred forty".