243321412 has 12 divisors (see below), whose sum is σ = 426336876. Its totient is φ = 121510880.

The previous prime is 243321409. The next prime is 243321443. The reversal of 243321412 is 214123342.

243321412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40144896 + 203176516 = 6336^2 + 14254^2 .

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, 33763 + ... + 40330.

It is an arithmetic number, because the mean of its divisors is an integer number (35528073).

Almost surely, 2^243321412 is an apocalyptic number.

It is an amenable number.

243321412 is a deficient number, since it is larger than the sum of its proper divisors (183015464).

243321412 is a wasteful number, since it uses less digits than its factorization.

243321412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74918 (or 74916 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 243321412 is about 15598.7631560967. The cubic root of 243321412 is about 624.3001548794.

Adding to 243321412 its reverse (214123342), we get a palindrome (457444754).

The spelling of 243321412 in words is "two hundred forty-three million, three hundred twenty-one thousand, four hundred twelve".