449943321 has 4 divisors (see below), whose sum is σ = 599924432. Its totient is φ = 299962212.

The previous prime is 449943289. The next prime is 449943337. The reversal of 449943321 is 123349944.

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 not a de Polignac number, because 449943321 - 2⁵ = 449943289 is a prime.

It is a super-2 number, since 2×449943321² = 404897984225018082, 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 449943321.

It is not an unprimeable number, because it can be changed into a prime (449943121) 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, 74990551 + ... + 74990556.

It is an arithmetic number, because the mean of its divisors is an integer number (149981108).

Almost surely, 2^449943321 is an apocalyptic number.

It is an amenable number.

449943321 is a deficient number, since it is larger than the sum of its proper divisors (149981111).

449943321 is a wasteful number, since it uses less digits than its factorization.

449943321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149981110.

The product of its digits is 93312, while the sum is 39.

The square root of 449943321 is about 21211.8674566857. The cubic root of 449943321 is about 766.2772579669.

The spelling of 449943321 in words is "four hundred forty-nine million, nine hundred forty-three thousand, three hundred twenty-one".