6465306340 has 24 divisors (see below), whose sum is σ = 13582211832. Its totient is φ = 2585157120.

The previous prime is 6465306307. The next prime is 6465306343. The reversal of 6465306340 is 436035646.

It can be written as a sum of positive squares in 4 ways, for example, as 985457664 + 5479848676 = 31392^2 + 74026^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6465306340.

It is not an unprimeable number, because it can be changed into a prime (6465306343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4149 + ... + 113788.

It is an arithmetic number, because the mean of its divisors is an integer number (565925493).

Almost surely, 2^6465306340 is an apocalyptic number.

It is an amenable number.

6465306340 is an abundant number, since it is smaller than the sum of its proper divisors (7116905492).

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

6465306340 is a wasteful number, since it uses less digits than its factorization.

6465306340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120687 (or 120685 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 6465306340 is about 80407.1286640681. The cubic root of 6465306340 is about 1862.9292822474.

It can be divided in two parts, 6465306 and 340, that added together give a palindrome (6465646).

The spelling of 6465306340 in words is "six billion, four hundred sixty-five million, three hundred six thousand, three hundred forty".