140013243244040 has 64 divisors (see below), whose sum is σ = 322933423719600. Its totient is φ = 54617448517632.

The previous prime is 140013243244037. The next prime is 140013243244067. The reversal of 140013243244040 is 40442342310041.

It can be written as a sum of positive squares in 8 ways, for example, as 92446648146724 + 47566595097316 = 9614918^2 + 6896854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140013243243988 and 140013243244006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269120687 + ... + 269640446.

Almost surely, 2^{140013243244040} is an apocalyptic number.

140013243244040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140013243244040 is an abundant number, since it is smaller than the sum of its proper divisors (182920180475560).

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

140013243244040 is a wasteful number, since it uses less digits than its factorization.

140013243244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538761306 (or 538761302 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 140013243244040 its reverse (40442342310041), we get a palindrome (180455585554081).

The spelling of 140013243244040 in words is "one hundred forty trillion, thirteen billion, two hundred forty-three million, two hundred forty-four thousand, forty".