431305445140 has 48 divisors (see below), whose sum is σ = 906965094672. Its totient is φ = 172289258496.

The previous prime is 431305445083. The next prime is 431305445141. The reversal of 431305445140 is 41544503134.

It can be written as a sum of positive squares in 8 ways, for example, as 229159044 + 431076286096 = 15138^2 + 656564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431305445096 and 431305445105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431305445141) 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, 95992734 + ... + 95997226.

It is an arithmetic number, because the mean of its divisors is an integer number (18895106139).

Almost surely, 2^431305445140 is an apocalyptic number.

It is an amenable number.

431305445140 is an abundant number, since it is smaller than the sum of its proper divisors (475659649532).

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

431305445140 is a wasteful number, since it uses less digits than its factorization.

431305445140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916 (or 9914 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 431305445140 its reverse (41544503134), we get a palindrome (472849948274).

The spelling of 431305445140 in words is "four hundred thirty-one billion, three hundred five million, four hundred forty-five thousand, one hundred forty".