243340002 has 24 divisors (see below), whose sum is σ = 540097740. Its totient is φ = 79134720.

The previous prime is 243339991. The next prime is 243340003. The reversal of 243340002 is 200043342.

It can be written as a sum of positive squares in 2 ways, for example, as 240281001 + 3059001 = 15501^2 + 1749^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (243340003) 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 11 ways as a sum of consecutive naturals, for example, 164127 + ... + 165602.

Almost surely, 2^243340002 is an apocalyptic number.

243340002 is an abundant number, since it is smaller than the sum of its proper divisors (296757738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243340002 is a wasteful number, since it uses less digits than its factorization.

243340002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329778 (or 329775 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 243340002 is about 15599.3590252933. The cubic root of 243340002 is about 624.3160535272.

Adding to 243340002 its reverse (200043342), we get a palindrome (443383344).

The spelling of 243340002 in words is "two hundred forty-three million, three hundred forty thousand, two".