243434042 has 16 divisors (see below), whose sum is σ = 390674400. Its totient is φ = 113419440.

The previous prime is 243434039. The next prime is 243434077. The reversal of 243434042 is 240434342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50192 + ... + 54827.

It is an arithmetic number, because the mean of its divisors is an integer number (24417150).

Almost surely, 2^243434042 is an apocalyptic number.

243434042 is a deficient number, since it is larger than the sum of its proper divisors (147240358).

243434042 is a wasteful number, since it uses less digits than its factorization.

243434042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105101.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 243434042 is about 15602.3729605467. The cubic root of 243434042 is about 624.3964665567.

Adding to 243434042 its reverse (240434342), we get a palindrome (483868384).

The spelling of 243434042 in words is "two hundred forty-three million, four hundred thirty-four thousand, forty-two".