243012412 has 12 divisors (see below), whose sum is σ = 435644496. Its totient is φ = 118542560.

The previous prime is 243012409. The next prime is 243012421. The reversal of 243012412 is 214210342.

It is a self number, because there is not a number n which added to its sum of digits gives 243012412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740728 + ... + 741055.

It is an arithmetic number, because the mean of its divisors is an integer number (36303708).

Almost surely, 2^243012412 is an apocalyptic number.

It is an amenable number.

243012412 is a deficient number, since it is larger than the sum of its proper divisors (192632084).

243012412 is a wasteful number, since it uses less digits than its factorization.

243012412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481828 (or 1481826 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 243012412 is about 15588.8553781219. The cubic root of 243012412 is about 624.0357714262.

Adding to 243012412 its reverse (214210342), we get a palindrome (457222754).

The spelling of 243012412 in words is "two hundred forty-three million, twelve thousand, four hundred twelve".