90202 has 16 divisors (see below), whose sum is σ = 164160. Its totient is φ = 36288.

The previous prime is 90199. The next prime is 90203. The reversal of 90202 is 20209.

It is not an unprimeable number, because it can be changed into a prime (90203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49 + ... + 427.

It is an arithmetic number, because the mean of its divisors is an integer number (10260).

2⁹⁰²⁰² is an apocalyptic number.

90202 is a deficient number, since it is larger than the sum of its proper divisors (73958).

90202 is a wasteful number, since it uses less digits than its factorization.

90202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

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

The square root of 90202 is about 300.3364779710. The cubic root of 90202 is about 44.8475499599.

It can be divided in two parts, 90 and 202, that added together give a palindrome (292).

The spelling of 90202 in words is "ninety thousand, two hundred two".