140440112243242 has 24 divisors (see below), whose sum is σ = 245683623315780. Its totient is φ = 60033892988160.

The previous prime is 140440112243209. The next prime is 140440112243257. The reversal of 140440112243242 is 242342211044041.

It can be written as a sum of positive squares in 2 ways, for example, as 128737411755001 + 11702700488241 = 11346251^2 + 3420921^2 .

It is a super-3 number, since 3×140440112243242³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140440112243198 and 140440112243207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1841944359 + ... + 1842020602.

Almost surely, 2^{140440112243242} is an apocalyptic number.

140440112243242 is a deficient number, since it is larger than the sum of its proper divisors (105243511072538).

140440112243242 is a wasteful number, since it uses less digits than its factorization.

140440112243242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683965366 (or 3683965359 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 140440112243242 its reverse (242342211044041), we get a palindrome (382782323287283).

The spelling of 140440112243242 in words is "one hundred forty trillion, four hundred forty billion, one hundred twelve million, two hundred forty-three thousand, two hundred forty-two".