2226605 has 4 divisors (see below), whose sum is σ = 2671932. Its totient is φ = 1781280.

The previous prime is 2226593. The next prime is 2226613. The reversal of 2226605 is 5066222.

It is a happy number.

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 1190281 + 1036324 = 1091^2 + 1018^2 .

It is not a de Polignac number, because 2226605 - 2¹⁰ = 2225581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222656 + ... + 222665.

It is an arithmetic number, because the mean of its divisors is an integer number (667983).

2^2226605 is an apocalyptic number.

It is an amenable number.

2226605 is a deficient number, since it is larger than the sum of its proper divisors (445327).

2226605 is an equidigital number, since it uses as much as digits as its factorization.

2226605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445326.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2226605 is about 1492.1812892541. The cubic root of 2226605 is about 130.5813216754.

The spelling of 2226605 in words is "two million, two hundred twenty-six thousand, six hundred five".