243469564 has 24 divisors (see below), whose sum is σ = 459310320. Its totient is φ = 112257024.

The previous prime is 243469561. The next prime is 243469571. The reversal of 243469564 is 465964342.

It is a happy number.

243469564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243469564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243469561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71607 + ... + 74929.

It is an arithmetic number, because the mean of its divisors is an integer number (19137930).

Almost surely, 2^243469564 is an apocalyptic number.

It is an amenable number.

243469564 is a deficient number, since it is larger than the sum of its proper divisors (215840756).

243469564 is a wasteful number, since it uses less digits than its factorization.

243469564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749 (or 4747 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The square root of 243469564 is about 15603.5112715055. The cubic root of 243469564 is about 624.4268358132.

The spelling of 243469564 in words is "two hundred forty-three million, four hundred sixty-nine thousand, five hundred sixty-four".