531434052340 has 12 divisors (see below), whose sum is σ = 1116011509956. Its totient is φ = 212573620928.

The previous prime is 531434052337. The next prime is 531434052341. The reversal of 531434052340 is 43250434135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81799432036 + 449634620304 = 286006^2 + 670548^2 .

It is a junction number, because it is equal to n+sod(n) for n = 531434052296 and 531434052305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531434052341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13285851289 + ... + 13285851328.

It is an arithmetic number, because the mean of its divisors is an integer number (93000959163).

Almost surely, 2^531434052340 is an apocalyptic number.

It is an amenable number.

531434052340 is an abundant number, since it is smaller than the sum of its proper divisors (584577457616).

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

531434052340 is a wasteful number, since it uses less digits than its factorization.

531434052340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26571702626 (or 26571702624 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 531434052340 its reverse (43250434135), we get a palindrome (574684486475).

The spelling of 531434052340 in words is "five hundred thirty-one billion, four hundred thirty-four million, fifty-two thousand, three hundred forty".