6468449 has 8 divisors (see below), whose sum is σ = 7376040. Its totient is φ = 5619456.

The previous prime is 6468443. The next prime is 6468461. The reversal of 6468449 is 9448646.

It can be written as a sum of positive squares in 4 ways, for example, as 1030225 + 5438224 = 1015^2 + 2332^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6468449 is a prime.

It is a d-powerful number, because it can be written as 6³ + 4² + 6⁸ + 8³ + 4⁵ + 4⁶ + 9⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6468443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14414 + ... + 14855.

It is an arithmetic number, because the mean of its divisors is an integer number (922005).

Almost surely, 2^6468449 is an apocalyptic number.

It is an amenable number.

6468449 is a deficient number, since it is larger than the sum of its proper divisors (907591).

6468449 is a wasteful number, since it uses less digits than its factorization.

6468449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29299.

The product of its digits is 165888, while the sum is 41.

The square root of 6468449 is about 2543.3145696119. The cubic root of 6468449 is about 186.3231077950.

The spelling of 6468449 in words is "six million, four hundred sixty-eight thousand, four hundred forty-nine".