242585198 has 16 divisors (see below), whose sum is σ = 384760320. Its totient is φ = 114389496.

The previous prime is 242585191. The next prime is 242585237. The reversal of 242585198 is 891585242.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242585191) 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, 5840 + ... + 22787.

It is an arithmetic number, because the mean of its divisors is an integer number (24047520).

Almost surely, 2^242585198 is an apocalyptic number.

242585198 is a deficient number, since it is larger than the sum of its proper divisors (142175122).

242585198 is a wasteful number, since it uses less digits than its factorization.

242585198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28871.

The product of its digits is 230400, while the sum is 44.

The square root of 242585198 is about 15575.1468050866. The cubic root of 242585198 is about 623.6698735232.

Adding to 242585198 its sum of digits (44), we get a palindrome (242585242).

The spelling of 242585198 in words is "two hundred forty-two million, five hundred eighty-five thousand, one hundred ninety-eight".