242815742 has 16 divisors (see below), whose sum is σ = 395911152. Its totient is φ = 111020160.

The previous prime is 242815733. The next prime is 242815747. The reversal of 242815742 is 247518242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242815747) by changing a digit.

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, 40859 + ... + 46422.

It is an arithmetic number, because the mean of its divisors is an integer number (24744447).

Almost surely, 2^242815742 is an apocalyptic number.

242815742 is a deficient number, since it is larger than the sum of its proper divisors (153095410).

242815742 is a wasteful number, since it uses less digits than its factorization.

242815742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87403.

The product of its digits is 35840, while the sum is 35.

The square root of 242815742 is about 15582.5460692404. The cubic root of 242815742 is about 623.8673818951.

The spelling of 242815742 in words is "two hundred forty-two million, eight hundred fifteen thousand, seven hundred forty-two".