200172834 has 12 divisors (see below), whose sum is σ = 433707846. Its totient is φ = 66724272.

The previous prime is 200172823. The next prime is 200172851. The reversal of 200172834 is 438271002.

It can be written as a sum of positive squares in only one way, i.e., 200081025 + 91809 = 14145^2 + 303^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200172798 and 200172807.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5560339 + ... + 5560374.

Almost surely, 2^200172834 is an apocalyptic number.

200172834 is an abundant number, since it is smaller than the sum of its proper divisors (233535012).

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

200172834 is a wasteful number, since it uses less digits than its factorization.

200172834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120721 (or 11120718 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 200172834 is about 14148.2449088217. The cubic root of 200172834 is about 584.9719557014.

The spelling of 200172834 in words is "two hundred million, one hundred seventy-two thousand, eight hundred thirty-four".