204839061 has 24 divisors (see below), whose sum is σ = 318579840. Its totient is φ = 116730432.

The previous prime is 204839051. The next prime is 204839077. The reversal of 204839061 is 160938402.

It is not a de Polignac number, because 204839061 - 2¹³ = 204830869 is a prime.

It is a super-2 number, since 2×204839061² = 83918081822723442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204839051) 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 23 ways as a sum of consecutive naturals, for example, 58420 + ... + 61826.

It is an arithmetic number, because the mean of its divisors is an integer number (13274160).

Almost surely, 2^204839061 is an apocalyptic number.

204839061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204839061 is a deficient number, since it is larger than the sum of its proper divisors (113740779).

204839061 is a wasteful number, since it uses less digits than its factorization.

204839061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833 (or 3826 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 204839061 is about 14312.1997261078. The cubic root of 204839061 is about 589.4825118675.

The spelling of 204839061 in words is "two hundred four million, eight hundred thirty-nine thousand, sixty-one".