140055436442 has 8 divisors (see below), whose sum is σ = 215761077876. Its totient is φ = 68135077152.

The previous prime is 140055436429. The next prime is 140055436447. The reversal of 140055436442 is 244634550041.

140055436442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139667385841 + 388050601 = 373721^2 + 19699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 140055436396 and 140055436405.

It is not an unprimeable number, because it can be changed into a prime (140055436447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946320443 + ... + 946320590.

Almost surely, 2^140055436442 is an apocalyptic number.

140055436442 is a deficient number, since it is larger than the sum of its proper divisors (75705641434).

140055436442 is a wasteful number, since it uses less digits than its factorization.

140055436442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892641072.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 140055436442 its reverse (244634550041), we get a palindrome (384689986483).

The spelling of 140055436442 in words is "one hundred forty billion, fifty-five million, four hundred thirty-six thousand, four hundred forty-two".