6340618384 has 45 divisors (see below), whose sum is σ = 13061254521. Its totient is φ = 2981272320.

The previous prime is 6340618381. The next prime is 6340618409. The reversal of 6340618384 is 4838160436.

The square root of 6340618384 is 79628.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4936467600 + 1404150784 = 70260^2 + 37472^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6340618384.

It is not an unprimeable number, because it can be changed into a prime (6340618381) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5414119 + ... + 5415289.

Almost surely, 2^6340618384 is an apocalyptic number.

6340618384 is the 79628-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6340618384

6340618384 is an abundant number, since it is smaller than the sum of its proper divisors (6720636137).

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

6340618384 is an equidigital number, since it uses as much as digits as its factorization.

6340618384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The cubic root of 6340618384 is about 1850.8754934810.

The spelling of 6340618384 in words is "six billion, three hundred forty million, six hundred eighteen thousand, three hundred eighty-four".