243444142 has 8 divisors (see below), whose sum is σ = 374072832. Its totient is φ = 118753200.

The previous prime is 243444079. The next prime is 243444143. The reversal of 243444142 is 241444342.

243444142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 243444142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243444143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484334 + ... + 1484497.

It is an arithmetic number, because the mean of its divisors is an integer number (46759104).

Almost surely, 2^243444142 is an apocalyptic number.

243444142 is a deficient number, since it is larger than the sum of its proper divisors (130628690).

243444142 is a wasteful number, since it uses less digits than its factorization.

243444142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968874.

The product of its digits is 12288, while the sum is 28.

The square root of 243444142 is about 15602.6966259041. The cubic root of 243444142 is about 624.4051017734.

Adding to 243444142 its reverse (241444342), we get a palindrome (484888484).

The spelling of 243444142 in words is "two hundred forty-three million, four hundred forty-four thousand, one hundred forty-two".