6448445 has 8 divisors (see below), whose sum is σ = 7768320. Its totient is φ = 5138640.

The previous prime is 6448427. The next prime is 6448451. The reversal of 6448445 is 5448446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6448445 - 2⁶ = 6448381 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025 + ... + 3734.

It is an arithmetic number, because the mean of its divisors is an integer number (971040).

Almost surely, 2^6448445 is an apocalyptic number.

It is an amenable number.

6448445 is a deficient number, since it is larger than the sum of its proper divisors (1319875).

6448445 is a wasteful number, since it uses less digits than its factorization.

6448445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035.

The product of its digits is 61440, while the sum is 35.

The square root of 6448445 is about 2539.3788610603. The cubic root of 6448445 is about 186.1308383006.

Subtracting from 6448445 its reverse (5448446), we obtain a palindrome (999999).

The spelling of 6448445 in words is "six million, four hundred forty-eight thousand, four hundred forty-five".