449357219 has 4 divisors (see below), whose sum is σ = 449531544. Its totient is φ = 449182896.

The previous prime is 449357191. The next prime is 449357231. The reversal of 449357219 is 912753944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449357219 - 2²⁰ = 448308643 is a prime.

It is a super-2 number, since 2×449357219² = 403843820534827922, which contains 22 as substring.

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 449357219.

It is not an unprimeable number, because it can be changed into a prime (449357299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83237 + ... + 88470.

It is an arithmetic number, because the mean of its divisors is an integer number (112382886).

Almost surely, 2^449357219 is an apocalyptic number.

449357219 is a deficient number, since it is larger than the sum of its proper divisors (174325).

449357219 is a wasteful number, since it uses less digits than its factorization.

449357219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174324.

The product of its digits is 272160, while the sum is 44.

The square root of 449357219 is about 21198.0475280154. The cubic root of 449357219 is about 765.9443924984.

The spelling of 449357219 in words is "four hundred forty-nine million, three hundred fifty-seven thousand, two hundred nineteen".