200129856 has 56 divisors (see below), whose sum is σ = 542446464. Its totient is φ = 65080320.

The previous prime is 200129851. The next prime is 200129857. The reversal of 200129856 is 658921002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200129851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4840 + ... + 20583.

It is an arithmetic number, because the mean of its divisors is an integer number (9686544).

Almost surely, 2^200129856 is an apocalyptic number.

It is an amenable number.

200129856 is an abundant number, since it is smaller than the sum of its proper divisors (342316608).

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

200129856 is a wasteful number, since it uses less digits than its factorization.

200129856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25479 (or 25469 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 200129856 is about 14146.7259816538. The cubic root of 200129856 is about 584.9300873424.

The spelling of 200129856 in words is "two hundred million, one hundred twenty-nine thousand, eight hundred fifty-six".