242042530 has 16 divisors (see below), whose sum is σ = 447452280. Its totient is φ = 94200192.

The previous prime is 242042509. The next prime is 242042551. The reversal of 242042530 is 35240242.

242042530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (242042509) and next prime (242042551).

It can be written as a sum of positive squares in 4 ways, for example, as 188210961 + 53831569 = 13719^2 + 7337^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326715 + ... + 327454.

Almost surely, 2^242042530 is an apocalyptic number.

242042530 is a deficient number, since it is larger than the sum of its proper divisors (205409750).

242042530 is a wasteful number, since it uses less digits than its factorization.

242042530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654213.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 242042530 is about 15557.7160920233. The cubic root of 242042530 is about 623.2044722679.

Adding to 242042530 its reverse (35240242), we get a palindrome (277282772).

The spelling of 242042530 in words is "two hundred forty-two million, forty-two thousand, five hundred thirty".