440143440040 has 32 divisors (see below), whose sum is σ = 990785484360. Its totient is φ = 175975110400.

The previous prime is 440143439993. The next prime is 440143440041. The reversal of 440143440040 is 40044341044.

It can be written as a sum of positive squares in 4 ways, for example, as 434911232484 + 5232207556 = 659478^2 + 72334^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440143439990 and 440143440008.

It is not an unprimeable number, because it can be changed into a prime (440143440041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2484091 + ... + 2655370.

Almost surely, 2^440143440040 is an apocalyptic number.

440143440040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440143440040 is an abundant number, since it is smaller than the sum of its proper divisors (550642044320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440143440040 is a wasteful number, since it uses less digits than its factorization.

440143440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141613 (or 5141609 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 440143440040 its reverse (40044341044), we get a palindrome (480187781084).

The spelling of 440143440040 in words is "four hundred forty billion, one hundred forty-three million, four hundred forty thousand, forty".