212826 has 16 divisors (see below), whose sum is σ = 432000. Its totient is φ = 69888.

The previous prime is 212801. The next prime is 212827. The reversal of 212826 is 628212.

It is a Curzon number.

It is a plaindrome in base 11 and base 14.

It is not an unprimeable number, because it can be changed into a prime (212827) by changing a digit.

212826 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (27000).

2²¹²⁸²⁶ is an apocalyptic number.

212826 is an abundant number, since it is smaller than the sum of its proper divisors (219174).

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

212826 is a wasteful number, since it uses less digits than its factorization.

212826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its digits is 384, while the sum is 21.

The square root of 212826 is about 461.3306840001. The cubic root of 212826 is about 59.7046597319.

It can be divided in two parts, 2 and 12826, that multiplied together give a palindrome (25652).

The spelling of 212826 in words is "two hundred twelve thousand, eight hundred twenty-six".