449686349 has 4 divisors (see below), whose sum is σ = 513927264. Its totient is φ = 385445436.

The previous prime is 449686343. The next prime is 449686399. The reversal of 449686349 is 943686944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449686349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449686349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449686343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32120447 + ... + 32120460.

It is an arithmetic number, because the mean of its divisors is an integer number (128481816).

Almost surely, 2^449686349 is an apocalyptic number.

It is an amenable number.

449686349 is a deficient number, since it is larger than the sum of its proper divisors (64240915).

449686349 is an equidigital number, since it uses as much as digits as its factorization.

449686349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64240914.

The product of its digits is 4478976, while the sum is 53.

The square root of 449686349 is about 21205.8093219759. The cubic root of 449686349 is about 766.1313512204.

The spelling of 449686349 in words is "four hundred forty-nine million, six hundred eighty-six thousand, three hundred forty-nine".