243432012 has 24 divisors (see below), whose sum is σ = 572157936. Its totient is φ = 80551168.

The previous prime is 243432001. The next prime is 243432017. The reversal of 243432012 is 210234342.

It is a self number, because there is not a number n which added to its sum of digits gives 243432012.

It is not an unprimeable number, because it can be changed into a prime (243432017) 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 in 7 ways as a sum of consecutive naturals, for example, 72393 + ... + 75680.

It is an arithmetic number, because the mean of its divisors is an integer number (23839914).

Almost surely, 2^243432012 is an apocalyptic number.

It is an amenable number.

243432012 is an abundant number, since it is smaller than the sum of its proper divisors (328725924).

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

243432012 is a wasteful number, since it uses less digits than its factorization.

243432012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148217 (or 148215 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243432012 is about 15602.3079062041. The cubic root of 243432012 is about 624.3947309349.

Adding to 243432012 its reverse (210234342), we get a palindrome (453666354).

The spelling of 243432012 in words is "two hundred forty-three million, four hundred thirty-two thousand, twelve".