449643441 has 8 divisors (see below), whose sum is σ = 645641920. Its totient is φ = 276703632.

The previous prime is 449643401. The next prime is 449643451. The reversal of 449643441 is 144346944.

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

It is not a de Polignac number, because 449643441 - 2⁶ = 449643377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 11529319 = 449643441 / (4 + 4 + 9 + 6 + 4 + 3 + 4 + 4 + 1).

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 449643441.

It is not an unprimeable number, because it can be changed into a prime (449643401) 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, 5764621 + ... + 5764698.

It is an arithmetic number, because the mean of its divisors is an integer number (80705240).

Almost surely, 2^449643441 is an apocalyptic number.

It is an amenable number.

449643441 is a deficient number, since it is larger than the sum of its proper divisors (195998479).

449643441 is a wasteful number, since it uses less digits than its factorization.

449643441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11529335.

The product of its digits is 165888, while the sum is 39.

The square root of 449643441 is about 21204.7975939409. The cubic root of 449643441 is about 766.1069829693.

The spelling of 449643441 in words is "four hundred forty-nine million, six hundred forty-three thousand, four hundred forty-one".