2226281 has 4 divisors (see below), whose sum is σ = 2256852. Its totient is φ = 2195712.

The previous prime is 2226251. The next prime is 2226283. The reversal of 2226281 is 1826222.

2226281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1488400 + 737881 = 1220^2 + 859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2226281 is a prime.

It is a super-2 number, since 2×2226281² = 9912654181922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2226283) by changing a digit.

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, 15176 + ... + 15321.

It is an arithmetic number, because the mean of its divisors is an integer number (564213).

2^2226281 is an apocalyptic number.

It is an amenable number.

2226281 is a deficient number, since it is larger than the sum of its proper divisors (30571).

2226281 is an equidigital number, since it uses as much as digits as its factorization.

2226281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30570.

The product of its digits is 768, while the sum is 23.

The square root of 2226281 is about 1492.0727194075. The cubic root of 2226281 is about 130.5749876077.

The spelling of 2226281 in words is "two million, two hundred twenty-six thousand, two hundred eighty-one".