204470 has 32 divisors (see below), whose sum is σ = 442368. Its totient is φ = 66528.

The previous prime is 204461. The next prime is 204481. The reversal of 204470 is 74402.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1547 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (13824).

2²⁰⁴⁴⁷⁰ is an apocalyptic number.

204470 is an abundant number, since it is smaller than the sum of its proper divisors (237898).

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

204470 is a wasteful number, since it uses less digits than its factorization.

204470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 204470 is about 452.1835910336. The cubic root of 204470 is about 58.9128273126.

Adding to 204470 its reverse (74402), we get a palindrome (278872).

The spelling of 204470 in words is "two hundred four thousand, four hundred seventy", and thus it is an iban number.