140440140434429 has 16 divisors (see below), whose sum is σ = 162225827300160. Its totient is φ = 120158094524160.

The previous prime is 140440140434387. The next prime is 140440140434491. The reversal of 140440140434429 is 924434041044041.

It is a happy number.

It is not a de Polignac number, because 140440140434429 - 2⁸ = 140440140434173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140440140434429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140440140434129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9441059 + ... + 19235744.

It is an arithmetic number, because the mean of its divisors is an integer number (10139114206260).

Almost surely, 2^{140440140434429} is an apocalyptic number.

It is an amenable number.

140440140434429 is a deficient number, since it is larger than the sum of its proper divisors (21785686865731).

140440140434429 is a wasteful number, since it uses less digits than its factorization.

140440140434429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28703020.

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 140440140434429 in words is "one hundred forty trillion, four hundred forty billion, one hundred forty million, four hundred thirty-four thousand, four hundred twenty-nine".