202089285 has 24 divisors (see below), whose sum is σ = 370894680. Its totient is φ = 101440512.

The previous prime is 202089271. The next prime is 202089289. The reversal of 202089285 is 582980202.

It can be written as a sum of positive squares in 4 ways, for example, as 98843364 + 103245921 = 9942^2 + 10161^2 .

It is not a de Polignac number, because 202089285 - 2⁵ = 202089253 is a prime.

It is a super-2 number, since 2×202089285² = 81680158223622450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202089289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131320 + ... + 132849.

It is an arithmetic number, because the mean of its divisors is an integer number (15453945).

Almost surely, 2^202089285 is an apocalyptic number.

It is an amenable number.

202089285 is a deficient number, since it is larger than the sum of its proper divisors (168805395).

202089285 is a wasteful number, since it uses less digits than its factorization.

202089285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264197 (or 264194 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 202089285 is about 14215.8110918794. The cubic root of 202089285 is about 586.8328663862.

The spelling of 202089285 in words is "two hundred two million, eighty-nine thousand, two hundred eighty-five".