200090 has 32 divisors (see below), whose sum is σ = 419904. Its totient is φ = 67840.

The previous prime is 200087. The next prime is 200117. The reversal of 200090 is 90002.

200090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (11).

200090 is a modest number, since divided by 90 gives 20 as remainder.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1817 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (13122).

2²⁰⁰⁰⁹⁰ is an apocalyptic number.

200090 is an abundant number, since it is smaller than the sum of its proper divisors (219814).

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

200090 is a wasteful number, since it uses less digits than its factorization.

200090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 200090 is about 447.3142072414. The cubic root of 200090 is about 58.4891255020.

Adding to 200090 its reverse (90002), we get a palindrome (290092).

The spelling of 200090 in words is "two hundred thousand, ninety".