200644426 has 8 divisors (see below), whose sum is σ = 301398084. Its totient is φ = 100178400.

The previous prime is 200644393. The next prime is 200644429. The reversal of 200644426 is 624446002.

It can be written as a sum of positive squares in 2 ways, for example, as 193627225 + 7017201 = 13915^2 + 2649^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 200644394 and 200644403.

It is not an unprimeable number, because it can be changed into a prime (200644429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70155 + ... + 72958.

Almost surely, 2^200644426 is an apocalyptic number.

200644426 is a deficient number, since it is larger than the sum of its proper divisors (100753658).

200644426 is a wasteful number, since it uses less digits than its factorization.

200644426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143816.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 200644426 is about 14164.9011997966. The cubic root of 200644426 is about 585.4309785880.

The spelling of 200644426 in words is "two hundred million, six hundred forty-four thousand, four hundred twenty-six".