449448239 has 4 divisors (see below), whose sum is σ = 454081824. Its totient is φ = 444814656.

The previous prime is 449448217. The next prime is 449448271. The reversal of 449448239 is 932844944.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449448239 is a prime.

It is a super-2 number, since 2×449448239² = 404007439080402242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449448193 and 449448202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449648239) 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, 2316647 + ... + 2316840.

It is an arithmetic number, because the mean of its divisors is an integer number (113520456).

Almost surely, 2^449448239 is an apocalyptic number.

449448239 is a deficient number, since it is larger than the sum of its proper divisors (4633585).

449448239 is an equidigital number, since it uses as much as digits as its factorization.

449448239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633584.

The product of its digits is 995328, while the sum is 47.

The square root of 449448239 is about 21200.1943151472. The cubic root of 449448239 is about 765.9961045506.

The spelling of 449448239 in words is "four hundred forty-nine million, four hundred forty-eight thousand, two hundred thirty-nine".