5218540340 has 48 divisors (see below), whose sum is σ = 11944171008. Its totient is φ = 1903622784.

The previous prime is 5218540333. The next prime is 5218540351. The reversal of 5218540340 is 430458125.

It is a junction number, because it is equal to n+sod(n) for n = 5218540297 and 5218540306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99332 + ... + 142491.

It is an arithmetic number, because the mean of its divisors is an integer number (248836896).

Almost surely, 2^5218540340 is an apocalyptic number.

It is an amenable number.

5218540340 is an abundant number, since it is smaller than the sum of its proper divisors (6725630668).

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

5218540340 is a wasteful number, since it uses less digits than its factorization.

5218540340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241928 (or 241926 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 5218540340 is about 72239.4652527273. The cubic root of 5218540340 is about 1734.5347898836.

Adding to 5218540340 its reverse (430458125), we get a palindrome (5648998465).

The spelling of 5218540340 in words is "five billion, two hundred eighteen million, five hundred forty thousand, three hundred forty".