242443130 has 16 divisors (see below), whose sum is σ = 436751784. Its totient is φ = 96898560.

The previous prime is 242443109. The next prime is 242443163. The reversal of 242443130 is 31344242.

It can be written as a sum of positive squares in 4 ways, for example, as 181899169 + 60543961 = 13487^2 + 7781^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 242443096 and 242443105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4034 + ... + 22386.

Almost surely, 2^242443130 is an apocalyptic number.

242443130 is a deficient number, since it is larger than the sum of its proper divisors (194308654).

242443130 is a wasteful number, since it uses less digits than its factorization.

242443130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19681.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 242443130 is about 15570.5854096755. The cubic root of 242443130 is about 623.5481007267.

Adding to 242443130 its reverse (31344242), we get a palindrome (273787372).

It can be divided in two parts, 2424 and 43130, that added together give a palindrome (45554).

The spelling of 242443130 in words is "two hundred forty-two million, four hundred forty-three thousand, one hundred thirty".