200109020 has 12 divisors (see below), whose sum is σ = 420228984. Its totient is φ = 80043600.

The previous prime is 200109011. The next prime is 200109031. The reversal of 200109020 is 20901002.

It is a junction number, because it is equal to n+sod(n) for n = 200108986 and 200109004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5002706 + ... + 5002745.

It is an arithmetic number, because the mean of its divisors is an integer number (35019082).

Almost surely, 2^200109020 is an apocalyptic number.

200109020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200109020 is an abundant number, since it is smaller than the sum of its proper divisors (220119964).

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

200109020 is a wasteful number, since it uses less digits than its factorization.

200109020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005460 (or 10005458 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 200109020 is about 14145.9895376746. The cubic root of 200109020 is about 584.9097871458.

The spelling of 200109020 in words is "two hundred million, one hundred nine thousand, twenty".