2228405 has 8 divisors (see below), whose sum is σ = 2700672. Its totient is φ = 1765008.

The previous prime is 2228393. The next prime is 2228407. The reversal of 2228405 is 5048222.

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

It is not a de Polignac number, because 2228405 - 2⁶ = 2228341 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 2²¹ + 8 + 4² + 0 + 5³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1649 + ... + 2678.

It is an arithmetic number, because the mean of its divisors is an integer number (337584).

2^2228405 is an apocalyptic number.

It is an amenable number.

2228405 is a deficient number, since it is larger than the sum of its proper divisors (472267).

2228405 is a wasteful number, since it uses less digits than its factorization.

2228405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2228405 is about 1492.7843112788. The cubic root of 2228405 is about 130.6164997559.

The spelling of 2228405 in words is "two million, two hundred twenty-eight thousand, four hundred five".