449391 has 8 divisors (see below), whose sum is σ = 603520. Its totient is φ = 297432.

The previous prime is 449381. The next prime is 449399. The reversal of 449391 is 193944.

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

It is not a de Polignac number, because 449391 - 2⁷ = 449263 is a prime.

It is a Duffinian number.

449391 is a lucky number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30 + ... + 948.

It is an arithmetic number, because the mean of its divisors is an integer number (75440).

2⁴⁴⁹³⁹¹ is an apocalyptic number.

449391 is a deficient number, since it is larger than the sum of its proper divisors (154129).

449391 is a wasteful number, since it uses less digits than its factorization.

449391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085.

The product of its digits is 3888, while the sum is 30.

The square root of 449391 is about 670.3663177696. The cubic root of 449391 is about 76.5963585632.

The spelling of 449391 in words is "four hundred forty-nine thousand, three hundred ninety-one".