449561 has 4 divisors (see below), whose sum is σ = 513792. Its totient is φ = 385332.

The previous prime is 449557. The next prime is 449563. The reversal of 449561 is 165944.

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 a cyclic number.

It is not a de Polignac number, because 449561 - 2² = 449557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (449563) 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, 32105 + ... + 32118.

It is an arithmetic number, because the mean of its divisors is an integer number (128448).

2⁴⁴⁹⁵⁶¹ is an apocalyptic number.

It is an amenable number.

449561 is a deficient number, since it is larger than the sum of its proper divisors (64231).

449561 is an equidigital number, since it uses as much as digits as its factorization.

449561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64230.

The product of its digits is 4320, while the sum is 29.

The square root of 449561 is about 670.4931021271. The cubic root of 449561 is about 76.6060158841.

The spelling of 449561 in words is "four hundred forty-nine thousand, five hundred sixty-one".