6449385 has 16 divisors (see below), whose sum is σ = 10437120. Its totient is φ = 3400320.

The previous prime is 6449363. The next prime is 6449413. The reversal of 6449385 is 5839446.

It is not a de Polignac number, because 6449385 - 2⁶ = 6449321 is a prime.

It is a d-powerful number, because it can be written as 6³ + 4⁸ + 4¹¹ + 9⁵ + 3¹¹ + 8 + 5⁹ .

It is a Curzon number.

6449385 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081 + ... + 3750.

It is an arithmetic number, because the mean of its divisors is an integer number (652320).

Almost surely, 2^6449385 is an apocalyptic number.

It is an amenable number.

6449385 is a deficient number, since it is larger than the sum of its proper divisors (3987735).

6449385 is a wasteful number, since it uses less digits than its factorization.

6449385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928.

The product of its digits is 103680, while the sum is 39.

The square root of 6449385 is about 2539.5639389470. The cubic root of 6449385 is about 186.1398820565.

The spelling of 6449385 in words is "six million, four hundred forty-nine thousand, three hundred eighty-five".