140243330220040 has 32 divisors (see below), whose sum is σ = 317290849326360. Its totient is φ = 55787402073600.

The previous prime is 140243330219987. The next prime is 140243330220083. The reversal of 140243330220040 is 40022033342041.

It can be written as a sum of positive squares in 4 ways, for example, as 115257788129124 + 24985542090916 = 10735818^2 + 4998554^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140243330219990 and 140243330220008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9685305621 + ... + 9685320100.

Almost surely, 2^{140243330220040} is an apocalyptic number.

140243330220040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140243330220040 is an abundant number, since it is smaller than the sum of its proper divisors (177047519106320).

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

140243330220040 is a wasteful number, since it uses less digits than its factorization.

140243330220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19370625913 (or 19370625909 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 140243330220040 its reverse (40022033342041), we get a palindrome (180265363562081).

The spelling of 140243330220040 in words is "one hundred forty trillion, two hundred forty-three billion, three hundred thirty million, two hundred twenty thousand, forty".