406800203 has 4 divisors (see below), whose sum is σ = 428210760. Its totient is φ = 385389648.

The previous prime is 406800169. The next prime is 406800211. The reversal of 406800203 is 302008604.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 406800203 - 2¹² = 406796107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406800223) 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, 10705250 + ... + 10705287.

It is an arithmetic number, because the mean of its divisors is an integer number (107052690).

Almost surely, 2^406800203 is an apocalyptic number.

406800203 is a deficient number, since it is larger than the sum of its proper divisors (21410557).

406800203 is a wasteful number, since it uses less digits than its factorization.

406800203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21410556.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 406800203 is about 20169.2886091701. The cubic root of 406800203 is about 740.9582199588.

Adding to 406800203 its reverse (302008604), we get a palindrome (708808807).

The spelling of 406800203 in words is "four hundred six million, eight hundred thousand, two hundred three".