242405536 has 24 divisors (see below), whose sum is σ = 481621140. Its totient is φ = 120089088.

The previous prime is 242405507. The next prime is 242405539. The reversal of 242405536 is 635504242.

It can be written as a sum of positive squares in 2 ways, for example, as 241491600 + 913936 = 15540^2 + 956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242405498 and 242405507.

It is not an unprimeable number, because it can be changed into a prime (242405539) 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, 31261 + ... + 38236.

Almost surely, 2^242405536 is an apocalyptic number.

It is an amenable number.

242405536 is a deficient number, since it is larger than the sum of its proper divisors (239215604).

242405536 is a wasteful number, since it uses less digits than its factorization.

242405536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69616 (or 69608 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 242405536 is about 15569.3781507162. The cubic root of 242405536 is about 623.5158692792.

Adding to 242405536 its reverse (635504242), we get a palindrome (877909778).

The spelling of 242405536 in words is "two hundred forty-two million, four hundred five thousand, five hundred thirty-six".