2228643 has 12 divisors (see below), whose sum is σ = 3388840. Its totient is φ = 1407456.

The previous prime is 2228591. The next prime is 2228657. The reversal of 2228643 is 3468222.

It is not a de Polignac number, because 2228643 - 2¹⁶ = 2163107 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁷ + 2²¹ + 8 + 6² + 4 + 3⁵ .

It is not an unprimeable number, because it can be changed into a prime (2228663) 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 11 ways as a sum of consecutive naturals, for example, 6346 + ... + 6687.

2^2228643 is an apocalyptic number.

2228643 is a deficient number, since it is larger than the sum of its proper divisors (1160197).

2228643 is a wasteful number, since it uses less digits than its factorization.

2228643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13058 (or 13055 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 2228643 is about 1492.8640259582. The cubic root of 2228643 is about 130.6211496618.

The spelling of 2228643 in words is "two million, two hundred twenty-eight thousand, six hundred forty-three".