204020471 has 4 divisors (see below), whose sum is σ = 204063552. Its totient is φ = 203977392.

The previous prime is 204020459. The next prime is 204020497. The reversal of 204020471 is 174020402.

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 204020471 - 2¹⁰ = 204019447 is a prime.

It is a super-3 number, since 3×204020471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204020671) 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, 13415 + ... + 24248.

It is an arithmetic number, because the mean of its divisors is an integer number (51015888).

Almost surely, 2^204020471 is an apocalyptic number.

204020471 is a deficient number, since it is larger than the sum of its proper divisors (43081).

204020471 is an equidigital number, since it uses as much as digits as its factorization.

204020471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43080.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 204020471 is about 14283.5734674485. The cubic root of 204020471 is about 588.6962218750.

Adding to 204020471 its reverse (174020402), we get a palindrome (378040873).

The spelling of 204020471 in words is "two hundred four million, twenty thousand, four hundred seventy-one".