243331412 has 6 divisors (see below), whose sum is σ = 425829978. Its totient is φ = 121665704.

The previous prime is 243331409. The next prime is 243331441. The reversal of 243331412 is 214133342.

It can be written as a sum of positive squares in only one way, i.e., 232135696 + 11195716 = 15236^2 + 3346^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30416423 + ... + 30416430.

It is an arithmetic number, because the mean of its divisors is an integer number (70971663).

Almost surely, 2^243331412 is an apocalyptic number.

It is an amenable number.

243331412 is a deficient number, since it is larger than the sum of its proper divisors (182498566).

243331412 is a wasteful number, since it uses less digits than its factorization.

243331412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60832857 (or 60832855 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 243331412 is about 15599.0836910378. The cubic root of 243331412 is about 624.3087072381.

Adding to 243331412 its reverse (214133342), we get a palindrome (457464754).

The spelling of 243331412 in words is "two hundred forty-three million, three hundred thirty-one thousand, four hundred twelve".