605320340 has 12 divisors (see below), whose sum is σ = 1271172756. Its totient is φ = 242128128.

The previous prime is 605320337. The next prime is 605320363. The reversal of 605320340 is 43023506.

It can be written as a sum of positive squares in 2 ways, for example, as 123254404 + 482065936 = 11102^2 + 21956^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15132989 + ... + 15133028.

It is an arithmetic number, because the mean of its divisors is an integer number (105931063).

Almost surely, 2^605320340 is an apocalyptic number.

It is an amenable number.

605320340 is an abundant number, since it is smaller than the sum of its proper divisors (665852416).

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

605320340 is a wasteful number, since it uses less digits than its factorization.

605320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30266026 (or 30266024 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 605320340 is about 24603.2587272499. The cubic root of 605320340 is about 845.9183042163.

Adding to 605320340 its reverse (43023506), we get a palindrome (648343846).

The spelling of 605320340 in words is "six hundred five million, three hundred twenty thousand, three hundred forty".