200020028 has 24 divisors (see below), whose sum is σ = 399136752. Its totient is φ = 86886144.

The previous prime is 200019997. The next prime is 200020031. The reversal of 200020028 is 820020002.

It is a super-2 number, since 2×200020028² = 80016023202241568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200019994 and 200020021.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 112250 + ... + 114017.

It is an arithmetic number, because the mean of its divisors is an integer number (16630698).

Almost surely, 2^200020028 is an apocalyptic number.

It is an amenable number.

200020028 is a deficient number, since it is larger than the sum of its proper divisors (199116724).

200020028 is a wasteful number, since it uses less digits than its factorization.

200020028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226301 (or 226299 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 200020028 is about 14142.8437027353. The cubic root of 200020028 is about 584.8230677334.

The spelling of 200020028 in words is "two hundred million, twenty thousand, twenty-eight".