20226 has 8 divisors (see below), whose sum is σ = 40464. Its totient is φ = 6740.

The previous prime is 20219. The next prime is 20231. The reversal of 20226 is 62202.

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

20226 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 20226.

It is an unprimeable number.

20226 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 3 ways as a sum of consecutive naturals, for example, 1680 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (5058).

2²⁰²²⁶ is an apocalyptic number.

20226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20232).

20226 is a wasteful number, since it uses less digits than its factorization.

20226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20226 is about 142.2181423026. The cubic root of 20226 is about 27.2460365136.

Adding to 20226 its reverse (62202), we get a palindrome (82428).

The spelling of 20226 in words is "twenty thousand, two hundred twenty-six".