140234242343440 has 80 divisors (see below), whose sum is σ = 376240108877568. Its totient is φ = 47613512498688.

The previous prime is 140234242343423. The next prime is 140234242343443. The reversal of 140234242343440 is 44343242432041.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×140234242343440² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 140234242343393 and 140234242343402.

It is not an unprimeable number, because it can be changed into a prime (140234242343443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215565087 + ... + 1215680446.

Almost surely, 2^{140234242343440} is an apocalyptic number.

140234242343440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140234242343440 is an abundant number, since it is smaller than the sum of its proper divisors (236005866534128).

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

140234242343440 is a wasteful number, since it uses less digits than its factorization.

140234242343440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431245656 (or 2431245650 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 40.

Adding to 140234242343440 its reverse (44343242432041), we get a palindrome (184577484775481).

The spelling of 140234242343440 in words is "one hundred forty trillion, two hundred thirty-four billion, two hundred forty-two million, three hundred forty-three thousand, four hundred forty".