204020829 has 32 divisors (see below), whose sum is σ = 317424000. Its totient is φ = 129330432.

The previous prime is 204020821. The next prime is 204020851. The reversal of 204020829 is 928020402.

It is not a de Polignac number, because 204020829 - 2³ = 204020821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204020821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50517 + ... + 54405.

It is an arithmetic number, because the mean of its divisors is an integer number (9919500).

Almost surely, 2^204020829 is an apocalyptic number.

204020829 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

204020829 is a deficient number, since it is larger than the sum of its proper divisors (113403171).

204020829 is a wasteful number, since it uses less digits than its factorization.

204020829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994 (or 3988 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 204020829 is about 14283.5859993210. The cubic root of 204020829 is about 588.6965662083.

The spelling of 204020829 in words is "two hundred four million, twenty thousand, eight hundred twenty-nine".