243444345 has 8 divisors (see below), whose sum is σ = 389510976. Its totient is φ = 129836976.

The previous prime is 243444337. The next prime is 243444373. The reversal of 243444345 is 543444342.

243444345 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 not a de Polignac number, because 243444345 - 2³ = 243444337 is a prime.

It is a super-2 number, since 2×243444345² = 118530298224958050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8114797 + ... + 8114826.

It is an arithmetic number, because the mean of its divisors is an integer number (48688872).

Almost surely, 2^243444345 is an apocalyptic number.

It is an amenable number.

243444345 is a deficient number, since it is larger than the sum of its proper divisors (146066631).

243444345 is a wasteful number, since it uses less digits than its factorization.

243444345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16229631.

The product of its digits is 92160, while the sum is 33.

The square root of 243444345 is about 15602.7031311885. The cubic root of 243444345 is about 624.4052753303.

Adding to 243444345 its reverse (543444342), we get a palindrome (786888687).

The spelling of 243444345 in words is "two hundred forty-three million, four hundred forty-four thousand, three hundred forty-five".