200426 has 4 divisors (see below), whose sum is σ = 300642. Its totient is φ = 100212.

The previous prime is 200407. The next prime is 200437. The reversal of 200426 is 624002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 198025 + 2401 = 445^2 + 49^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200426.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 200426.

It is an unprimeable number.

200426 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105 + ... + 50108.

2²⁰⁰⁴²⁶ is an apocalyptic number.

200426 is a deficient number, since it is larger than the sum of its proper divisors (100216).

200426 is a wasteful number, since it uses less digits than its factorization.

200426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100215.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 200426 is about 447.6896246285. The cubic root of 200426 is about 58.5218463710.

Adding to 200426 its reverse (624002), we get a palindrome (824428).

It can be divided in two parts, 200 and 426, that added together give a palindrome (626).

The spelling of 200426 in words is "two hundred thousand, four hundred twenty-six".