140223421442 has 16 divisors (see below), whose sum is σ = 228519317880. Its totient is φ = 64145770752.

The previous prime is 140223421439. The next prime is 140223421627. The reversal of 140223421442 is 244124322041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45778453681 + 94444967761 = 213959^2 + 307319^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23860817 + ... + 23866692.

Almost surely, 2^140223421442 is an apocalyptic number.

140223421442 is a deficient number, since it is larger than the sum of its proper divisors (88295896438).

140223421442 is a wasteful number, since it uses less digits than its factorization.

140223421442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47727637.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 140223421442 its reverse (244124322041), we get a palindrome (384347743483).

The spelling of 140223421442 in words is "one hundred forty billion, two hundred twenty-three million, four hundred twenty-one thousand, four hundred forty-two".