243444804 has 12 divisors (see below), whose sum is σ = 568037904. Its totient is φ = 81148264.

The previous prime is 243444787. The next prime is 243444809. The reversal of 243444804 is 408444342.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (243444809) 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 3 ways as a sum of consecutive naturals, for example, 10143522 + ... + 10143545.

It is an arithmetic number, because the mean of its divisors is an integer number (47336492).

Almost surely, 2^243444804 is an apocalyptic number.

It is an amenable number.

243444804 is an abundant number, since it is smaller than the sum of its proper divisors (324593100).

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

243444804 is a wasteful number, since it uses less digits than its factorization.

243444804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20287074 (or 20287072 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

The square root of 243444804 is about 15602.7178401713. The cubic root of 243444804 is about 624.4056677565.

The spelling of 243444804 in words is "two hundred forty-three million, four hundred forty-four thousand, eight hundred four".