213290 has 32 divisors (see below), whose sum is σ = 480384. Its totient is φ = 66240.

The previous prime is 213289. The next prime is 213307. The reversal of 213290 is 92312.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 632 + ... + 908.

It is an arithmetic number, because the mean of its divisors is an integer number (15012).

2²¹³²⁹⁰ is an apocalyptic number.

213290 is an abundant number, since it is smaller than the sum of its proper divisors (267094).

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

213290 is a wasteful number, since it uses less digits than its factorization.

213290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 213290 is about 461.8333032600. The cubic root of 213290 is about 59.7480173009.

It can be divided in two parts, 2132 and 90, that added together give a palindrome (2222).

The spelling of 213290 in words is "two hundred thirteen thousand, two hundred ninety".