449984289 has 4 divisors (see below), whose sum is σ = 599979056. Its totient is φ = 299989524.

The previous prime is 449984287. The next prime is 449984291. The reversal of 449984289 is 982489944.

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 an interprime number because it is at equal distance from previous prime (449984287) and next prime (449984291).

It is not a de Polignac number, because 449984289 - 2¹ = 449984287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449984287) 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, 74997379 + ... + 74997384.

It is an arithmetic number, because the mean of its divisors is an integer number (149994764).

Almost surely, 2^449984289 is an apocalyptic number.

It is an amenable number.

449984289 is a deficient number, since it is larger than the sum of its proper divisors (149994767).

449984289 is a wasteful number, since it uses less digits than its factorization.

449984289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149994766.

The product of its digits is 5971968, while the sum is 57.

The square root of 449984289 is about 21212.8331205429. The cubic root of 449984289 is about 766.3005141509.

It can be divided in two parts, 4499 and 84289, that added together give a palindrome (88788).

The spelling of 449984289 in words is "four hundred forty-nine million, nine hundred eighty-four thousand, two hundred eighty-nine".