6464335340 has 48 divisors (see below), whose sum is σ = 14707943712. Its totient is φ = 2377030656.

The previous prime is 6464335331. The next prime is 6464335351. The reversal of 6464335340 is 435334646.

It is a junction number, because it is equal to n+sod(n) for n = 6464335294 and 6464335303.

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, 206459 + ... + 235698.

It is an arithmetic number, because the mean of its divisors is an integer number (306415494).

Almost surely, 2^6464335340 is an apocalyptic number.

It is an amenable number.

6464335340 is an abundant number, since it is smaller than the sum of its proper divisors (8243608372).

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

6464335340 is a wasteful number, since it uses less digits than its factorization.

6464335340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442226 (or 442224 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 38.

The square root of 6464335340 is about 80401.0904154913. The cubic root of 6464335340 is about 1862.8360154681.

Adding to 6464335340 its reverse (435334646), we get a palindrome (6899669986).

The spelling of 6464335340 in words is "six billion, four hundred sixty-four million, three hundred thirty-five thousand, three hundred forty".