6448228446 has 64 divisors (see below), whose sum is σ = 14237254656. Its totient is φ = 1930704000.

The previous prime is 6448228427. The next prime is 6448228447.

6448228446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6448228395 and 6448228404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448228447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5845531 + ... + 5846633.

It is an arithmetic number, because the mean of its divisors is an integer number (222457104).

Almost surely, 2^6448228446 is an apocalyptic number.

6448228446 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6448228446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7118627328).

6448228446 is an abundant number, since it is smaller than the sum of its proper divisors (7789026210).

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

6448228446 is a wasteful number, since it uses less digits than its factorization.

6448228446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097.

The product of its digits is 2359296, while the sum is 48.

The square root of 6448228446 is about 80300.8620501673. The cubic root of 6448228446 is about 1861.2875470640.

The spelling of 6448228446 in words is "six billion, four hundred forty-eight million, two hundred twenty-eight thousand, four hundred forty-six".