13440140242 has 16 divisors (see below), whose sum is σ = 20196332352. Its totient is φ = 6708042000.

The previous prime is 13440140213. The next prime is 13440140261. The reversal of 13440140242 is 24204104431.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4423948 + ... + 4426984.

It is an arithmetic number, because the mean of its divisors is an integer number (1262270772).

Almost surely, 2^13440140242 is an apocalyptic number.

13440140242 is a deficient number, since it is larger than the sum of its proper divisors (6756192110).

13440140242 is a wasteful number, since it uses less digits than its factorization.

13440140242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6273.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 13440140242 its reverse (24204104431), we get a palindrome (37644244673).

The spelling of 13440140242 in words is "thirteen billion, four hundred forty million, one hundred forty thousand, two hundred forty-two".