200042442 has 24 divisors (see below), whose sum is σ = 447408000. Its totient is φ = 64529640.

The previous prime is 200042419. The next prime is 200042443. The reversal of 200042442 is 244240002.

200042442 is a `hidden beast` number, since 200 + 0 + 424 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (200042443) 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 11 ways as a sum of consecutive naturals, for example, 178692 + ... + 179807.

It is an arithmetic number, because the mean of its divisors is an integer number (18642000).

Almost surely, 2^200042442 is an apocalyptic number.

200042442 is an abundant number, since it is smaller than the sum of its proper divisors (247365558).

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

200042442 is a wasteful number, since it uses less digits than its factorization.

200042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358538 (or 358535 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 200042442 is about 14143.6360954318. The cubic root of 200042442 is about 584.8449117704.

Adding to 200042442 its reverse (244240002), we get a palindrome (444282444).

The spelling of 200042442 in words is "two hundred million, forty-two thousand, four hundred forty-two".