200117944 has 32 divisors (see below), whose sum is σ = 406355040. Its totient is φ = 91843200.

The previous prime is 200117921. The next prime is 200117947. The reversal of 200117944 is 449711002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200117947) 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 7 ways as a sum of consecutive naturals, for example, 13509 + ... + 24139.

It is an arithmetic number, because the mean of its divisors is an integer number (12698595).

Almost surely, 2^200117944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200117944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203177520).

200117944 is an abundant number, since it is smaller than the sum of its proper divisors (206237096).

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

200117944 is a wasteful number, since it uses less digits than its factorization.

200117944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831 (or 10827 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 200117944 is about 14146.3049592464. The cubic root of 200117944 is about 584.9184818352.

Adding to 200117944 its reverse (449711002), we get a palindrome (649828946).

The spelling of 200117944 in words is "two hundred million, one hundred seventeen thousand, nine hundred forty-four".