243349249 has 8 divisors (see below), whose sum is σ = 285892992. Its totient is φ = 204209040.

The previous prime is 243349243. The next prime is 243349273. The reversal of 243349249 is 942943342.

It is a happy number.

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 243349249 - 2¹¹ = 243347201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243349243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850729 + ... + 851014.

It is an arithmetic number, because the mean of its divisors is an integer number (35736624).

Almost surely, 2^243349249 is an apocalyptic number.

It is an amenable number.

243349249 is a deficient number, since it is larger than the sum of its proper divisors (42543743).

243349249 is a wasteful number, since it uses less digits than its factorization.

243349249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701767.

The product of its digits is 186624, while the sum is 40.

The square root of 243349249 is about 15599.6554128609. The cubic root of 243349249 is about 624.3239614988.

The spelling of 243349249 in words is "two hundred forty-three million, three hundred forty-nine thousand, two hundred forty-nine".