400204 has 12 divisors (see below), whose sum is σ = 800464. Its totient is φ = 171504.

The previous prime is 400199. The next prime is 400207. The reversal of 400204 is 402004.

400204 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (400207) 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, 7119 + ... + 7174.

2⁴⁰⁰²⁰⁴ is an apocalyptic number.

It is an amenable number.

400204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400204 is a wasteful number, since it uses less digits than its factorization.

400204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14304 (or 14302 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 400204 is about 632.6167876369. The cubic root of 400204 is about 73.6931535511.

Adding to 400204 its reverse (402004), we get a palindrome (802208).

The spelling of 400204 in words is "four hundred thousand, two hundred four", and thus it is an iban number.