243443020424 has 16 divisors (see below), whose sum is σ = 483305996700. Its totient is φ = 114561421312.

The previous prime is 243443020423. The next prime is 243443020453. The reversal of 243443020424 is 424020344342.

It can be written as a sum of positive squares in 2 ways, for example, as 243425797924 + 17222500 = 493382^2 + 4150^2 .

It is a super-2 number, since 2×243443020424² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243443020423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895010969 + ... + 895011240.

Almost surely, 2^243443020424 is an apocalyptic number.

It is an amenable number.

243443020424 is a deficient number, since it is larger than the sum of its proper divisors (239862976276).

243443020424 is a wasteful number, since it uses less digits than its factorization.

243443020424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790022232 (or 1790022228 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 243443020424 its reverse (424020344342), we get a palindrome (667463364766).

The spelling of 243443020424 in words is "two hundred forty-three billion, four hundred forty-three million, twenty thousand, four hundred twenty-four".