200510042 has 4 divisors (see below), whose sum is σ = 300765066. Its totient is φ = 100255020.

The previous prime is 200510027. The next prime is 200510047. The reversal of 200510042 is 240015002.

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., 200477281 + 32761 = 14159^2 + 181^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200509999 and 200510026.

It is not an unprimeable number, because it can be changed into a prime (200510047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50127509 + ... + 50127512.

Almost surely, 2^200510042 is an apocalyptic number.

200510042 is a deficient number, since it is larger than the sum of its proper divisors (100255024).

200510042 is a wasteful number, since it uses less digits than its factorization.

200510042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100255023.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 200510042 is about 14160.1568494138. The cubic root of 200510042 is about 585.3002496019.

Adding to 200510042 its reverse (240015002), we get a palindrome (440525044).

The spelling of 200510042 in words is "two hundred million, five hundred ten thousand, forty-two".