200278 has 8 divisors (see below), whose sum is σ = 323568. Its totient is φ = 92424.

The previous prime is 200273. The next prime is 200293. The reversal of 200278 is 872002.

200278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×200278² = 80222554568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200273) 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, 3826 + ... + 3877.

It is an arithmetic number, because the mean of its divisors is an integer number (40446).

2²⁰⁰²⁷⁸ is an apocalyptic number.

200278 is a deficient number, since it is larger than the sum of its proper divisors (123290).

200278 is a wasteful number, since it uses less digits than its factorization.

200278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7718.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 200278 is about 447.5243010162. The cubic root of 200278 is about 58.5074381172.

It can be divided in two parts, 2002 and 78, that added together give a triangular number (2080 = T₆₄).

The spelling of 200278 in words is "two hundred thousand, two hundred seventy-eight".