243344142 has 16 divisors (see below), whose sum is σ = 540764880. Its totient is φ = 81114696.

The previous prime is 243344111. The next prime is 243344149. The reversal of 243344142 is 241443342.

It is a happy number.

243344142 is a `hidden beast` number, since 243 + 3 + 4 + 414 + 2 = 666.

243344142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×243344142³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243344149) by changing a digit.

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, 2253133 + ... + 2253240.

It is an arithmetic number, because the mean of its divisors is an integer number (33797805).

Almost surely, 2^243344142 is an apocalyptic number.

243344142 is an abundant number, since it is smaller than the sum of its proper divisors (297420738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243344142 is a wasteful number, since it uses less digits than its factorization.

243344142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506384 (or 4506378 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 243344142 is about 15599.4917224889. The cubic root of 243344142 is about 624.3195940519.

Adding to 243344142 its reverse (241443342), we get a palindrome (484787484).

The spelling of 243344142 in words is "two hundred forty-three million, three hundred forty-four thousand, one hundred forty-two".