243984002 has 4 divisors (see below), whose sum is σ = 365976006. Its totient is φ = 121992000.

The previous prime is 243984001. The next prime is 243984011. The reversal of 243984002 is 200489342.

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

It can be written as a sum of positive squares in only one way, i.e., 235346281 + 8637721 = 15341^2 + 2939^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 243984002.

It is not an unprimeable number, because it can be changed into a prime (243984001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60995999 + ... + 60996002.

Almost surely, 2^243984002 is an apocalyptic number.

243984002 is a deficient number, since it is larger than the sum of its proper divisors (121992004).

243984002 is a wasteful number, since it uses less digits than its factorization.

243984002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121992003.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 243984002 is about 15619.9872599180. The cubic root of 243984002 is about 624.8663197827.

The spelling of 243984002 in words is "two hundred forty-three million, nine hundred eighty-four thousand, two".