2228866 has 8 divisors (see below), whose sum is σ = 3378060. Its totient is φ = 1102848.

The previous prime is 2228813. The next prime is 2228867. The reversal of 2228866 is 6688222.

It can be written as a sum of positive squares in 2 ways, for example, as 2163841 + 65025 = 1471^2 + 255^2 .

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

It is a d-powerful number, because it can be written as 2 + 2¹⁰ + 2¹¹ + 8⁴ + 8⁶ + 6⁷ + 6⁸ .

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2228867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5551 + ... + 5938.

2^2228866 is an apocalyptic number.

2228866 is a deficient number, since it is larger than the sum of its proper divisors (1149194).

2228866 is a wasteful number, since it uses less digits than its factorization.

2228866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11588.

The product of its digits is 18432, while the sum is 34.

The square root of 2228866 is about 1492.9387127407. The cubic root of 2228866 is about 130.6255062059.

The spelling of 2228866 in words is "two million, two hundred twenty-eight thousand, eight hundred sixty-six".