243443444 has 12 divisors (see below), whose sum is σ = 426808704. Its totient is φ = 121498104.

The previous prime is 243443441. The next prime is 243443483. The reversal of 243443444 is 444344342.

243443444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243443444² = 118529420853162272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 243443444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243443441) 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, 53444 + ... + 57819.

It is an arithmetic number, because the mean of its divisors is an integer number (35567392).

Almost surely, 2^243443444 is an apocalyptic number.

It is an amenable number.

243443444 is a deficient number, since it is larger than the sum of its proper divisors (183365260).

243443444 is a wasteful number, since it uses less digits than its factorization.

243443444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111814 (or 111812 counting only the distinct ones).

The product of its digits is 73728, while the sum is 32.

The square root of 243443444 is about 15602.6742579598. The cubic root of 243443444 is about 624.4045050107.

Adding to 243443444 its reverse (444344342), we get a palindrome (687787786).

The spelling of 243443444 in words is "two hundred forty-three million, four hundred forty-three thousand, four hundred forty-four".