2686228 has 6 divisors (see below), whose sum is σ = 4700906. Its totient is φ = 1343112.

The previous prime is 2686223. The next prime is 2686259. The reversal of 2686228 is 8226862.

2686228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2274064 + 412164 = 1508^2 + 642^2 .

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2686193 and 2686202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686223) 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 as a sum of consecutive naturals, namely, 335775 + ... + 335782.

2^2686228 is an apocalyptic number.

It is an amenable number.

2686228 is a deficient number, since it is larger than the sum of its proper divisors (2014678).

2686228 is a wasteful number, since it uses less digits than its factorization.

2686228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671561 (or 671559 counting only the distinct ones).

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

The square root of 2686228 is about 1638.9716287965. The cubic root of 2686228 is about 139.0105059085.

The spelling of 2686228 in words is "two million, six hundred eighty-six thousand, two hundred twenty-eight".