449144447 has 4 divisors (see below), whose sum is σ = 449729280. Its totient is φ = 448559616.

The previous prime is 449144429. The next prime is 449144491. The reversal of 449144447 is 744441944.

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 449144447 - 2¹⁸ = 448882303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449144407) 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, 291263 + ... + 292800.

It is an arithmetic number, because the mean of its divisors is an integer number (112432320).

Almost surely, 2^449144447 is an apocalyptic number.

449144447 is a deficient number, since it is larger than the sum of its proper divisors (584833).

449144447 is an equidigital number, since it uses as much as digits as its factorization.

449144447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584832.

The product of its digits is 258048, while the sum is 41.

The square root of 449144447 is about 21193.0282640306. The cubic root of 449144447 is about 765.8234810849.

The spelling of 449144447 in words is "four hundred forty-nine million, one hundred forty-four thousand, four hundred forty-seven".