200278656 has 192 divisors, whose sum is σ = 614839680. Its totient is φ = 64862208.

The previous prime is 200278651. The next prime is 200278709. The reversal of 200278656 is 656872002.

200278656 is digitally balanced in base 3, 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 (192).

It is a super-2 number, since 2×200278656² = 80223080098332672, which contains 22 as substring.

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 200278656.

It is not an unprimeable number, because it can be changed into a prime (200278651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1461820 + ... + 1461956.

It is an arithmetic number, because the mean of its divisors is an integer number (3202290).

Almost surely, 2^200278656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200278656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307419840).

200278656 is an abundant number, since it is smaller than the sum of its proper divisors (414561024).

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

200278656 is an equidigital number, since it uses as much as digits as its factorization.

200278656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 200278656 is about 14151.9841718397. The cubic root of 200278656 is about 585.0750199649.

The spelling of 200278656 in words is "two hundred million, two hundred seventy-eight thousand, six hundred fifty-six".