140234240400040 has 32 divisors (see below), whose sum is σ = 317270284236360. Its totient is φ = 55783786233600.

The previous prime is 140234240399963. The next prime is 140234240400083. The reversal of 140234240400040 is 40004042432041.

It can be written as a sum of positive squares in 4 ways, for example, as 81172279508356 + 59061960891684 = 9009566^2 + 7685178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140234240399981 and 140234240400008.

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, 9684677871 + ... + 9684692350.

Almost surely, 2^{140234240400040} is an apocalyptic number.

140234240400040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140234240400040 is an abundant number, since it is smaller than the sum of its proper divisors (177036043836320).

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

140234240400040 is a wasteful number, since it uses less digits than its factorization.

140234240400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19369370413 (or 19369370409 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 140234240400040 its reverse (40004042432041), we get a palindrome (180238282832081).

The spelling of 140234240400040 in words is "one hundred forty trillion, two hundred thirty-four billion, two hundred forty million, four hundred thousand, forty".