431031424240 has 80 divisors (see below), whose sum is σ = 1054276495200. Its totient is φ = 163645776896.

The previous prime is 431031424217. The next prime is 431031424253. The reversal of 431031424240 is 42424130134.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 431031424199 and 431031424208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437607 + ... + 1711366.

It is an arithmetic number, because the mean of its divisors is an integer number (13178456190).

Almost surely, 2^431031424240 is an apocalyptic number.

431031424240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431031424240 is an abundant number, since it is smaller than the sum of its proper divisors (623245070960).

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

431031424240 is a wasteful number, since it uses less digits than its factorization.

431031424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149074 (or 3149068 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 431031424240 its reverse (42424130134), we get a palindrome (473455554374).

The spelling of 431031424240 in words is "four hundred thirty-one billion, thirty-one million, four hundred twenty-four thousand, two hundred forty".