200861856 has 144 divisors (see below), whose sum is σ = 638243424. Its totient is φ = 61772544.

The previous prime is 200861839. The next prime is 200861897. The reversal of 200861856 is 658168002.

It is a happy number.

200861856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 200861856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100095 + ... + 102081.

It is an arithmetic number, because the mean of its divisors is an integer number (4432246).

Almost surely, 2^200861856 is an apocalyptic number.

200861856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200861856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319121712).

200861856 is an abundant number, since it is smaller than the sum of its proper divisors (437381568).

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

200861856 is a wasteful number, since it uses less digits than its factorization.

200861856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 200861856 is about 14172.5740781271. The cubic root of 200861856 is about 585.6423712959.

The spelling of 200861856 in words is "two hundred million, eight hundred sixty-one thousand, eight hundred fifty-six".