200043 has 16 divisors (see below), whose sum is σ = 307200. Its totient is φ = 128520.

The previous prime is 200041. The next prime is 200063. The reversal of 200043 is 340002.

It is not a de Polignac number, because 200043 - 2¹ = 200041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 199998 and 200034.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 200043.

It is not an unprimeable number, because it can be changed into a prime (200041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718 + ... + 956.

It is an arithmetic number, because the mean of its divisors is an integer number (19200).

2²⁰⁰⁰⁴³ is an apocalyptic number.

200043 is a deficient number, since it is larger than the sum of its proper divisors (107157).

200043 is a wasteful number, since it uses less digits than its factorization.

200043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 200043 is about 447.2616683777. The cubic root of 200043 is about 58.4845455560.

Adding to 200043 its reverse (340002), we get a palindrome (540045).

The spelling of 200043 in words is "two hundred thousand, forty-three", and thus it is an iban number.