242940018 has 16 divisors (see below), whose sum is σ = 502634880. Its totient is φ = 78187536.

The previous prime is 242940011. The next prime is 242940029. The reversal of 242940018 is 810049242.

It is not an unprimeable number, because it can be changed into a prime (242940011) 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, 697930 + ... + 698277.

It is an arithmetic number, because the mean of its divisors is an integer number (31414680).

Almost surely, 2^242940018 is an apocalyptic number.

242940018 is an abundant number, since it is smaller than the sum of its proper divisors (259694862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242940018 is a wasteful number, since it uses less digits than its factorization.

242940018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396241.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 242940018 is about 15586.5332258331. The cubic root of 242940018 is about 623.9737980040.

The spelling of 242940018 in words is "two hundred forty-two million, nine hundred forty thousand, eighteen".