140402240441 has 4 divisors (see below), whose sum is σ = 141690334500. Its totient is φ = 139114146384.

The previous prime is 140402240437. The next prime is 140402240509. The reversal of 140402240441 is 144042204041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 128716630441 + 11685610000 = 358771^2 + 108100^2 .

It is a cyclic number.

It is not a de Polignac number, because 140402240441 - 2² = 140402240437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140402240441.

It is not an unprimeable number, because it can be changed into a prime (140402200441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644046866 + ... + 644047083.

It is an arithmetic number, because the mean of its divisors is an integer number (35422583625).

Almost surely, 2^140402240441 is an apocalyptic number.

It is an amenable number.

140402240441 is a deficient number, since it is larger than the sum of its proper divisors (1288094059).

140402240441 is a wasteful number, since it uses less digits than its factorization.

140402240441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288094058.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 140402240441 its reverse (144042204041), we get a palindrome (284444444482).

The spelling of 140402240441 in words is "one hundred forty billion, four hundred two million, two hundred forty thousand, four hundred forty-one".