2858166 has 24 divisors (see below), whose sum is σ = 6423144. Its totient is φ = 952560.

The previous prime is 2858161. The next prime is 2858173. The reversal of 2858166 is 6618582.

It is a happy number.

It is a super-2 number, since 2×2858166² = 16338225767112, 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 2858166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2455 + ... + 3426.

It is an arithmetic number, because the mean of its divisors is an integer number (267631).

2^2858166 is an apocalyptic number.

2858166 is an abundant number, since it is smaller than the sum of its proper divisors (3564978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2858166 is an equidigital number, since it uses as much as digits as its factorization.

2858166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898 (or 5886 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 2858166 is about 1690.6111321058. The cubic root of 2858166 is about 141.9152771076.

The spelling of 2858166 in words is "two million, eight hundred fifty-eight thousand, one hundred sixty-six".