506404215340 has 48 divisors (see below), whose sum is σ = 1120459511808. Its totient is φ = 191873525184.

The previous prime is 506404215307. The next prime is 506404215347. The reversal of 506404215340 is 43512404605.

It is a junction number, because it is equal to n+sod(n) for n = 506404215296 and 506404215305.

It is not an unprimeable number, because it can be changed into a prime (506404215347) 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, 5296692 + ... + 5391451.

It is an arithmetic number, because the mean of its divisors is an integer number (23342906496).

Almost surely, 2^506404215340 is an apocalyptic number.

It is an amenable number.

506404215340 is an abundant number, since it is smaller than the sum of its proper divisors (614055296468).

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

506404215340 is a wasteful number, since it uses less digits than its factorization.

506404215340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10688278 (or 10688276 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 506404215340 its reverse (43512404605), we get a palindrome (549916619945).

The spelling of 506404215340 in words is "five hundred six billion, four hundred four million, two hundred fifteen thousand, three hundred forty".