13440312422 has 4 divisors (see below), whose sum is σ = 20160468636. Its totient is φ = 6720156210.

The previous prime is 13440312373. The next prime is 13440312439. The reversal of 13440312422 is 22421304431.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 13440312391 and 13440312400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360078104 + ... + 3360078107.

It is an arithmetic number, because the mean of its divisors is an integer number (5040117159).

Almost surely, 2^13440312422 is an apocalyptic number.

13440312422 is a deficient number, since it is larger than the sum of its proper divisors (6720156214).

13440312422 is an equidigital number, since it uses as much as digits as its factorization.

13440312422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720156213.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13440312422 its reverse (22421304431), we get a palindrome (35861616853).

The spelling of 13440312422 in words is "thirteen billion, four hundred forty million, three hundred twelve thousand, four hundred twenty-two".