6448384 has 18 divisors (see below), whose sum is σ = 12872090. Its totient is φ = 3224064.

The previous prime is 6448381. The next prime is 6448399. The reversal of 6448384 is 4838446.

It can be written as a sum of positive squares in only one way, i.e., 6390784 + 57600 = 2528^2 + 240^2 .

It is a super-2 number, since 2×6448384² = 83163312422912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12339 + ... + 12850.

Almost surely, 2^6448384 is an apocalyptic number.

6448384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6448384 is a deficient number, since it is larger than the sum of its proper divisors (6423706).

6448384 is an equidigital number, since it uses as much as digits as its factorization.

6448384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25205 (or 25191 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 6448384 is about 2539.3668502207. The cubic root of 6448384 is about 186.1302513882.

The spelling of 6448384 in words is "six million, four hundred forty-eight thousand, three hundred eighty-four".