243224423 has 24 divisors (see below), whose sum is σ = 285215280. Its totient is φ = 206023680.

The previous prime is 243224411. The next prime is 243224441. The reversal of 243224423 is 324422342.

It is a happy number.

It is not a de Polignac number, because 243224423 - 2⁴ = 243224407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243224392 and 243224401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243227423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153248 + ... + 154826.

It is an arithmetic number, because the mean of its divisors is an integer number (11883970).

Almost surely, 2^243224423 is an apocalyptic number.

243224423 is a deficient number, since it is larger than the sum of its proper divisors (41990857).

243224423 is a wasteful number, since it uses less digits than its factorization.

243224423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1650 counting only the distinct ones).

The product of its digits is 9216, while the sum is 26.

The square root of 243224423 is about 15595.6539779517. The cubic root of 243224423 is about 624.2171942469.

Adding to 243224423 its reverse (324422342), we get a palindrome (567646765).

The spelling of 243224423 in words is "two hundred forty-three million, two hundred twenty-four thousand, four hundred twenty-three".