200842 has 8 divisors (see below), whose sum is σ = 303876. Its totient is φ = 99552.

The previous prime is 200807. The next prime is 200843. The reversal of 200842 is 248002.

It can be written as a sum of positive squares in 2 ways, for example, as 175561 + 25281 = 419^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (200843) by changing a digit.

200842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93 + ... + 640.

2²⁰⁰⁸⁴² is an apocalyptic number.

200842 is a deficient number, since it is larger than the sum of its proper divisors (103034).

200842 is a wasteful number, since it uses less digits than its factorization.

200842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 200842 is about 448.1539913914. The cubic root of 200842 is about 58.5623072961.

Adding to 200842 its reverse (248002), we get a palindrome (448844).

The spelling of 200842 in words is "two hundred thousand, eight hundred forty-two".