431341334240 has 96 divisors (see below), whose sum is σ = 1028016468864. Its totient is φ = 171023892480.

The previous prime is 431341334213. The next prime is 431341334243. The reversal of 431341334240 is 42433143134.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 431341334197 and 431341334206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431341334243) 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, 8516672 + ... + 8567168.

It is an arithmetic number, because the mean of its divisors is an integer number (10708504884).

Almost surely, 2^431341334240 is an apocalyptic number.

431341334240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431341334240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514008234432).

431341334240 is an abundant number, since it is smaller than the sum of its proper divisors (596675134624).

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

431341334240 is a wasteful number, since it uses less digits than its factorization.

431341334240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50980 (or 50972 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 431341334240 its reverse (42433143134), we get a palindrome (473774477374).

The spelling of 431341334240 in words is "four hundred thirty-one billion, three hundred forty-one million, three hundred thirty-four thousand, two hundred forty".