20228226 has 8 divisors (see below), whose sum is σ = 40456464. Its totient is φ = 6742740.

The previous prime is 20228207. The next prime is 20228239. The reversal of 20228226 is 62282202.

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

20228226 is an admirable number.

It is a super-2 number, since 2×20228226² = 818362254214152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20228196 and 20228205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685680 + ... + 1685691.

It is an arithmetic number, because the mean of its divisors is an integer number (5057058).

Almost surely, 2^20228226 is an apocalyptic number.

20228226 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.

20228226 is a wasteful number, since it uses less digits than its factorization.

20228226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371376.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20228226 is about 4497.5800159641. The cubic root of 20228226 is about 272.4703601014.

The spelling of 20228226 in words is "twenty million, two hundred twenty-eight thousand, two hundred twenty-six".