431320325254440 has 32 divisors (see below), whose sum is σ = 1293960975763680. Its totient is φ = 115018753401152.

The previous prime is 431320325254433. The next prime is 431320325254459. The reversal of 431320325254440 is 44452523023134.

It is a junction number, because it is equal to n+sod(n) for n = 431320325254392 and 431320325254401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1797168021774 + ... + 1797168022013.

It is an arithmetic number, because the mean of its divisors is an integer number (40436280492615).

Almost surely, 2^{431320325254440} is an apocalyptic number.

431320325254440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431320325254440 is an abundant number, since it is smaller than the sum of its proper divisors (862640650509240).

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

431320325254440 is a wasteful number, since it uses less digits than its factorization.

431320325254440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594336043801 (or 3594336043797 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 431320325254440 its reverse (44452523023134), we get a palindrome (475772848277574).

The spelling of 431320325254440 in words is "four hundred thirty-one trillion, three hundred twenty billion, three hundred twenty-five million, two hundred fifty-four thousand, four hundred forty".