431403201340 has 96 divisors (see below), whose sum is σ = 947051481600. Its totient is φ = 164860765440.

The previous prime is 431403201301. The next prime is 431403201377. The reversal of 431403201340 is 43102304134.

It is a super-2 number, since 2×431403201340² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60256681 + ... + 60263839.

It is an arithmetic number, because the mean of its divisors is an integer number (9865119600).

Almost surely, 2^431403201340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431403201340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473525740800).

431403201340 is an abundant number, since it is smaller than the sum of its proper divisors (515648280260).

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

431403201340 is a wasteful number, since it uses less digits than its factorization.

431403201340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275 (or 8273 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 431403201340 its reverse (43102304134), we get a palindrome (474505505474).

The spelling of 431403201340 in words is "four hundred thirty-one billion, four hundred three million, two hundred one thousand, three hundred forty".