431041345440 has 96 divisors (see below), whose sum is σ = 1357990111296. Its totient is φ = 114926592000.

The previous prime is 431041345421. The next prime is 431041345481. The reversal of 431041345440 is 44543140134.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199440 + ... + 3331440.

It is an arithmetic number, because the mean of its divisors is an integer number (14145730326).

Almost surely, 2^431041345440 is an apocalyptic number.

431041345440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431041345440 is an abundant number, since it is smaller than the sum of its proper divisors (926948765856).

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

431041345440 is a wasteful number, since it uses less digits than its factorization.

431041345440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138822 (or 138814 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 431041345440 its reverse (44543140134), we get a palindrome (475584485574).

The spelling of 431041345440 in words is "four hundred thirty-one billion, forty-one million, three hundred forty-five thousand, four hundred forty".