200006128 has 20 divisors (see below), whose sum is σ = 442870960. Its totient is φ = 85716864.

The previous prime is 200006123. The next prime is 200006167. The reversal of 200006128 is 821600002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200006123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892773 + ... + 892996.

It is an arithmetic number, because the mean of its divisors is an integer number (22143548).

Almost surely, 2^200006128 is an apocalyptic number.

200006128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

200006128 is an abundant number, since it is smaller than the sum of its proper divisors (242864832).

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

200006128 is a wasteful number, since it uses less digits than its factorization.

200006128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785784 (or 1785778 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 200006128 is about 14142.3522795891. The cubic root of 200006128 is about 584.8095203751.

The spelling of 200006128 in words is "two hundred million, six thousand, one hundred twenty-eight".