6448816 has 30 divisors (see below), whose sum is σ = 13737836. Its totient is φ = 2930400.

The previous prime is 6448811. The next prime is 6448853. The reversal of 6448816 is 6188446.

It is not an unprimeable number, because it can be changed into a prime (6448811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271 + ... + 3601.

Almost surely, 2^6448816 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 6448816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6868918).

6448816 is an abundant number, since it is smaller than the sum of its proper divisors (7289020).

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

6448816 is a wasteful number, since it uses less digits than its factorization.

6448816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361 (or 3344 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 6448816 is about 2539.4519093694. The cubic root of 6448816 is about 186.1344078029.

The spelling of 6448816 in words is "six million, four hundred forty-eight thousand, eight hundred sixteen".