2028866 has 16 divisors (see below), whose sum is σ = 3496704. Its totient is φ = 864864.

The previous prime is 2028863. The next prime is 2028881. The reversal of 2028866 is 6688202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4151 + ... + 4613.

It is an arithmetic number, because the mean of its divisors is an integer number (218544).

2^2028866 is an apocalyptic number.

2028866 is a deficient number, since it is larger than the sum of its proper divisors (1467838).

2028866 is a wasteful number, since it uses less digits than its factorization.

2028866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2028866 is about 1424.3826733010. The cubic root of 2028866 is about 126.5953599887.

The spelling of 2028866 in words is "two million, twenty-eight thousand, eight hundred sixty-six".