202090 has 16 divisors (see below), whose sum is σ = 415872. Its totient is φ = 69264.

The previous prime is 202087. The next prime is 202099. The reversal of 202090 is 90202.

202090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 202090.

It is not an unprimeable number, because it can be changed into a prime (202099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374 + ... + 1513.

It is an arithmetic number, because the mean of its divisors is an integer number (25992).

2²⁰²⁰⁹⁰ is an apocalyptic number.

202090 is an abundant number, since it is smaller than the sum of its proper divisors (213782).

It is a weird number, because it is abundant, but not a pseudoperfect number.

202090 is a wasteful number, since it uses less digits than its factorization.

202090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 202090 is about 449.5442136209. The cubic root of 202090 is about 58.6833558465.

Adding to 202090 its reverse (90202), we get a palindrome (292292).

The spelling of 202090 in words is "two hundred two thousand, ninety".