302540242 has 8 divisors (see below), whose sum is σ = 460583856. Its totient is φ = 149012292.

The previous prime is 302540239. The next prime is 302540243. The reversal of 302540242 is 242045203.

302540242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (302540243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128748 + ... + 1129015.

It is an arithmetic number, because the mean of its divisors is an integer number (57572982).

Almost surely, 2^302540242 is an apocalyptic number.

302540242 is a deficient number, since it is larger than the sum of its proper divisors (158043614).

302540242 is a wasteful number, since it uses less digits than its factorization.

302540242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257832.

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

The square root of 302540242 is about 17393.6839686134. The cubic root of 302540242 is about 671.3171105716.

Adding to 302540242 its reverse (242045203), we get a palindrome (544585445).

The spelling of 302540242 in words is "three hundred two million, five hundred forty thousand, two hundred forty-two".