2028166 has 16 divisors (see below), whose sum is σ = 3495456. Its totient is φ = 864576.

The previous prime is 2028139. The next prime is 2028179. The reversal of 2028166 is 6618202.

It is a super-2 number, since 2×2028166² = 8226914647112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2028166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4210 + ... + 4666.

It is an arithmetic number, because the mean of its divisors is an integer number (218466).

2^2028166 is an apocalyptic number.

2028166 is a deficient number, since it is larger than the sum of its proper divisors (1467290).

2028166 is a wasteful number, since it uses less digits than its factorization.

2028166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2028166 is about 1424.1369316186. The cubic root of 2028166 is about 126.5807989900.

The spelling of 2028166 in words is "two million, twenty-eight thousand, one hundred sixty-six".