220826 has 8 divisors (see below), whose sum is σ = 339444. Its totient is φ = 107680.

The previous prime is 220811. The next prime is 220841. The reversal of 220826 is 628022.

It is an interprime number because it is at equal distance from previous prime (220811) and next prime (220841).

It can be written as a sum of positive squares in 2 ways, for example, as 198025 + 22801 = 445^2 + 151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 220798 and 220807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265 + ... + 1428.

2²²⁰⁸²⁶ is an apocalyptic number.

220826 is a deficient number, since it is larger than the sum of its proper divisors (118618).

220826 is a wasteful number, since it uses less digits than its factorization.

220826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 220826 is about 469.9212700017. The cubic root of 220826 is about 60.4435646118.

Adding to 220826 its reverse (628022), we get a palindrome (848848).

The spelling of 220826 in words is "two hundred twenty thousand, eight hundred twenty-six".