140442659444 has 12 divisors (see below), whose sum is σ = 246730977444. Its totient is φ = 69948094464.

The previous prime is 140442659443. The next prime is 140442659473. The reversal of 140442659444 is 444956244041.

It can be written as a sum of positive squares in 2 ways, for example, as 134733043600 + 5709615844 = 367060^2 + 75562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140442659443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68307659 + ... + 68309714.

It is an arithmetic number, because the mean of its divisors is an integer number (20560914787).

Almost surely, 2^140442659444 is an apocalyptic number.

It is an amenable number.

140442659444 is a deficient number, since it is larger than the sum of its proper divisors (106288318000).

140442659444 is a wasteful number, since it uses less digits than its factorization.

140442659444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136617634 (or 136617632 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 47.

The spelling of 140442659444 in words is "one hundred forty billion, four hundred forty-two million, six hundred fifty-nine thousand, four hundred forty-four".