443431421240 has 32 divisors (see below), whose sum is σ = 1002785287680. Its totient is φ = 176472196992.

The previous prime is 443431421203. The next prime is 443431421281. The reversal of 443431421240 is 42124134344.

It is a junction number, because it is equal to n+sod(n) for n = 443431421197 and 443431421206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28128632 + ... + 28144391.

It is an arithmetic number, because the mean of its divisors is an integer number (31337040240).

Almost surely, 2^443431421240 is an apocalyptic number.

443431421240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

443431421240 is an abundant number, since it is smaller than the sum of its proper divisors (559353866440).

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

443431421240 is a wasteful number, since it uses less digits than its factorization.

443431421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56273231 (or 56273227 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 443431421240 its reverse (42124134344), we get a palindrome (485555555584).

The spelling of 443431421240 in words is "four hundred forty-three billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred forty".