406203 has 24 divisors (see below), whose sum is σ = 668928. Its totient is φ = 214368.

The previous prime is 406183. The next prime is 406207. The reversal of 406203 is 302604.

It is not a de Polignac number, because 406203 - 2⁵ = 406171 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 406203.

It is not an unprimeable number, because it can be changed into a prime (406207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13993 + ... + 14021.

It is an arithmetic number, because the mean of its divisors is an integer number (27872).

2⁴⁰⁶²⁰³ is an apocalyptic number.

406203 is a deficient number, since it is larger than the sum of its proper divisors (262725).

406203 is a wasteful number, since it uses less digits than its factorization.

406203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 406203 is about 637.3405682992. The cubic root of 406203 is about 74.0595454500.

Adding to 406203 its reverse (302604), we get a palindrome (708807).

The spelling of 406203 in words is "four hundred six thousand, two hundred three".