243412442 has 16 divisors (see below), whose sum is σ = 449377152. Its totient is φ = 96294960.

The previous prime is 243412423. The next prime is 243412447. The reversal of 243412442 is 244214342.

It is a happy number.

243412442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (243412447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668534 + ... + 668897.

It is an arithmetic number, because the mean of its divisors is an integer number (28086072).

Almost surely, 2^243412442 is an apocalyptic number.

243412442 is a deficient number, since it is larger than the sum of its proper divisors (205964710).

243412442 is a wasteful number, since it uses less digits than its factorization.

243412442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337453.

The product of its digits is 6144, while the sum is 26.

The square root of 243412442 is about 15601.6807427918. The cubic root of 243412442 is about 624.3779983610.

Adding to 243412442 its reverse (244214342), we get a palindrome (487626784).

The spelling of 243412442 in words is "two hundred forty-three million, four hundred twelve thousand, four hundred forty-two".