6465320 has 64 divisors (see below), whose sum is σ = 15724800. Its totient is φ = 2384640.

The previous prime is 6465317. The next prime is 6465337. The reversal of 6465320 is 235646.

It is a self number, because there is not a number n which added to its sum of digits gives 6465320.

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, 35630 + ... + 35810.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

Almost surely, 2^6465320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6465320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7862400).

6465320 is an abundant number, since it is smaller than the sum of its proper divisors (9259480).

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

6465320 is a wasteful number, since it uses less digits than its factorization.

6465320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6465320 is about 2542.6993530498. The cubic root of 6465320 is about 186.2930594255.

The spelling of 6465320 in words is "six million, four hundred sixty-five thousand, three hundred twenty".