140440330320438 has 16 divisors (see below), whose sum is σ = 280910124791856. Its totient is φ = 46808532748320.

The previous prime is 140440330320397. The next prime is 140440330320439. The reversal of 140440330320438 is 834023033044041.

It is a junction number, because it is equal to n+sod(n) for n = 140440330320396 and 140440330320405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140440330320439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1227610993 + ... + 1227725388.

It is an arithmetic number, because the mean of its divisors is an integer number (17556882799491).

Almost surely, 2^{140440330320438} is an apocalyptic number.

140440330320438 is an abundant number, since it is smaller than the sum of its proper divisors (140469794471418).

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

140440330320438 is a wasteful number, since it uses less digits than its factorization.

140440330320438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455345919.

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 140440330320438 its reverse (834023033044041), we get a palindrome (974463363364479).

The spelling of 140440330320438 in words is "one hundred forty trillion, four hundred forty billion, three hundred thirty million, three hundred twenty thousand, four hundred thirty-eight".