140223431400442 has 32 divisors (see below), whose sum is σ = 236364450295680. Its totient is φ = 61904342280000.

The previous prime is 140223431400431. The next prime is 140223431400449. The reversal of 140223431400442 is 244004134322041.

It is a super-2 number, since 2×140223431400442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140223431400398 and 140223431400407.

It is not an unprimeable number, because it can be changed into a prime (140223431400449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146781984 + ... + 147734212.

It is an arithmetic number, because the mean of its divisors is an integer number (7386389071740).

Almost surely, 2^{140223431400442} is an apocalyptic number.

140223431400442 is a deficient number, since it is larger than the sum of its proper divisors (96141018895238).

140223431400442 is a wasteful number, since it uses less digits than its factorization.

140223431400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198518.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 140223431400442 its reverse (244004134322041), we get a palindrome (384227565722483).

The spelling of 140223431400442 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred thirty-one million, four hundred thousand, four hundred forty-two".