200040242 has 4 divisors (see below), whose sum is σ = 300060366. Its totient is φ = 100020120.

The previous prime is 200040233. The next prime is 200040263. The reversal of 200040242 is 242040002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 199967881 + 72361 = 14141^2 + 269^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50010059 + ... + 50010062.

Almost surely, 2^200040242 is an apocalyptic number.

200040242 is a deficient number, since it is larger than the sum of its proper divisors (100020124).

200040242 is a wasteful number, since it uses less digits than its factorization.

200040242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100020123.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 200040242 is about 14143.5583217237. The cubic root of 200040242 is about 584.8427677861.

Adding to 200040242 its reverse (242040002), we get a palindrome (442080244).

The spelling of 200040242 in words is "two hundred million, forty thousand, two hundred forty-two".