440143439999 has 4 divisors (see below), whose sum is σ = 444181453320. Its totient is φ = 436105426680.

The previous prime is 440143439993. The next prime is 440143440041. The reversal of 440143439999 is 999934341044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440143439999 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 (440143439993) 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, 2019006497 + ... + 2019006714.

It is an arithmetic number, because the mean of its divisors is an integer number (111045363330).

Almost surely, 2^440143439999 is an apocalyptic number.

440143439999 is a deficient number, since it is larger than the sum of its proper divisors (4038013321).

440143439999 is a wasteful number, since it uses less digits than its factorization.

440143439999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038013320.

The product of its (nonzero) digits is 15116544, while the sum is 59.

The spelling of 440143439999 in words is "four hundred forty billion, one hundred forty-three million, four hundred thirty-nine thousand, nine hundred ninety-nine".