200449 has 4 divisors (see below), whose sum is σ = 205380. Its totient is φ = 195520.

The previous prime is 200443. The next prime is 200461. The reversal of 200449 is 944002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65025 + 135424 = 255^2 + 368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2404 + ... + 2485.

It is an arithmetic number, because the mean of its divisors is an integer number (51345).

2²⁰⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

200449 is a deficient number, since it is larger than the sum of its proper divisors (4931).

200449 is an equidigital number, since it uses as much as digits as its factorization.

200449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 200449 is about 447.7153113308. The cubic root of 200449 is about 58.5240848547.

The spelling of 200449 in words is "two hundred thousand, four hundred forty-nine".