200456 has 8 divisors (see below), whose sum is σ = 375870. Its totient is φ = 100224.

The previous prime is 200443. The next prime is 200461. The reversal of 200456 is 654002.

It can be written as a sum of positive squares in only one way, i.e., 188356 + 12100 = 434^2 + 110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 200456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12521 + ... + 12536.

2²⁰⁰⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

200456 is a deficient number, since it is larger than the sum of its proper divisors (175414).

200456 is a wasteful number, since it uses less digits than its factorization.

200456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25063 (or 25059 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 200456 is about 447.7231287302. The cubic root of 200456 is about 58.5247660983.

Adding to 200456 its reverse (654002), we get a palindrome (854458).

It can be divided in two parts, 200 and 456, that added together give a palindrome (656).

The spelling of 200456 in words is "two hundred thousand, four hundred fifty-six".