243416445 has 16 divisors (see below), whose sum is σ = 390578112. Its totient is φ = 129451520.

The previous prime is 243416417. The next prime is 243416447. The reversal of 243416445 is 544614342.

It is a happy number.

It is not a de Polignac number, because 243416445 - 2⁸ = 243416189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243416447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17691 + ... + 28280.

It is an arithmetic number, because the mean of its divisors is an integer number (24411132).

Almost surely, 2^243416445 is an apocalyptic number.

It is an amenable number.

243416445 is a deficient number, since it is larger than the sum of its proper divisors (147161667).

243416445 is a wasteful number, since it uses less digits than its factorization.

243416445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46332.

The product of its digits is 46080, while the sum is 33.

The square root of 243416445 is about 15601.8090297247. The cubic root of 243416445 is about 624.3814210448.

The spelling of 243416445 in words is "two hundred forty-three million, four hundred sixteen thousand, four hundred forty-five".