2028007866 has 16 divisors (see below), whose sum is σ = 4057077024. Its totient is φ = 675825744.

The previous prime is 2028007853. The next prime is 2028007867. The reversal of 2028007866 is 6687008202.

It is a super-2 number, since 2×2028007866² = 8225631809115747912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028007867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18201 + ... + 66236.

It is an arithmetic number, because the mean of its divisors is an integer number (253567314).

Almost surely, 2^2028007866 is an apocalyptic number.

2028007866 is an abundant number, since it is smaller than the sum of its proper divisors (2029069158).

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

2028007866 is a wasteful number, since it uses less digits than its factorization.

2028007866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88445.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 2028007866 is about 45033.4083320372. The cubic root of 2028007866 is about 1265.7750911333.

The spelling of 2028007866 in words is "two billion, twenty-eight million, seven thousand, eight hundred sixty-six".