6465744 has 60 divisors (see below), whose sum is σ = 18776576. Its totient is φ = 2153952.

The previous prime is 6465733. The next prime is 6465749. The reversal of 6465744 is 4475646.

6465744 is a `hidden beast` number, since 646 + 5 + 7 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 6465699 and 6465708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3057 + ... + 4719.

Almost surely, 2^6465744 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 6465744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9388288).

6465744 is an abundant number, since it is smaller than the sum of its proper divisors (12310832).

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

6465744 is a wasteful number, since it uses less digits than its factorization.

6465744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 1668 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 6465744 is about 2542.7827276431. The cubic root of 6465744 is about 186.2971317442.

The spelling of 6465744 in words is "six million, four hundred sixty-five thousand, seven hundred forty-four".