440031440440 has 32 divisors (see below), whose sum is σ = 992209164480. Its totient is φ = 175632412032.

The previous prime is 440031440389. The next prime is 440031440441. The reversal of 440031440440 is 44044130044.

It is a junction number, because it is equal to n+sod(n) for n = 440031440399 and 440031440408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440031440441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11861379 + ... + 11898418.

It is an arithmetic number, because the mean of its divisors is an integer number (31006536390).

Almost surely, 2^440031440440 is an apocalyptic number.

440031440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440031440440 is an abundant number, since it is smaller than the sum of its proper divisors (552177724040).

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

440031440440 is a wasteful number, since it uses less digits than its factorization.

440031440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760271 (or 23760267 counting only the distinct ones).

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

Adding to 440031440440 its reverse (44044130044), we get a palindrome (484075570484).

The spelling of 440031440440 in words is "four hundred forty billion, thirty-one million, four hundred forty thousand, four hundred forty".