440142112109 has 16 divisors (see below), whose sum is σ = 542658175488. Its totient is φ = 348373139712.

The previous prime is 440142112037. The next prime is 440142112117. The reversal of 440142112109 is 901211241044.

It is a cyclic number.

It is not a de Polignac number, because 440142112109 - 2³² = 435847144813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440142112129) 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, 34886837 + ... + 34899450.

It is an arithmetic number, because the mean of its divisors is an integer number (33916135968).

Almost surely, 2^440142112109 is an apocalyptic number.

It is an amenable number.

440142112109 is a deficient number, since it is larger than the sum of its proper divisors (102516063379).

440142112109 is a wasteful number, since it uses less digits than its factorization.

440142112109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69786364.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 440142112109 in words is "four hundred forty billion, one hundred forty-two million, one hundred twelve thousand, one hundred nine".