6464448 has 140 divisors (see below), whose sum is σ = 20284440. Its totient is φ = 2032128.

The previous prime is 6464431. The next prime is 6464483. The reversal of 6464448 is 8444646.

6464448 is a `hidden beast` number, since 6 + 4 + 644 + 4 + 8 = 666.

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

It is a nude number because it is divisible by every one of its digits.

Its product of digits (73728) is a multiple of the sum of its prime factors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150315 + ... + 150357.

Almost surely, 2^6464448 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 6464448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10142220).

6464448 is an abundant number, since it is smaller than the sum of its proper divisors (13819992).

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

6464448 is a wasteful number, since it uses less digits than its factorization.

6464448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 77 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 6464448 is about 2542.5278759534. The cubic root of 6464448 is about 186.2846837199.

The spelling of 6464448 in words is "six million, four hundred sixty-four thousand, four hundred forty-eight".