243200449 has 8 divisors (see below), whose sum is σ = 248175872. Its totient is φ = 238269600.

The previous prime is 243200443. The next prime is 243200497. The reversal of 243200449 is 944002342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243200449 - 2⁵ = 243200417 is a prime.

It is a super-3 number, since 3×243200449³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243200443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9 + ... + 22054.

It is an arithmetic number, because the mean of its divisors is an integer number (31021984).

Almost surely, 2^243200449 is an apocalyptic number.

It is an amenable number.

243200449 is a deficient number, since it is larger than the sum of its proper divisors (4975423).

243200449 is a wasteful number, since it uses less digits than its factorization.

243200449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22287.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 243200449 is about 15594.8853474465. The cubic root of 243200449 is about 624.1966844169.

The spelling of 243200449 in words is "two hundred forty-three million, two hundred thousand, four hundred forty-nine".