205410049 has 8 divisors (see below), whose sum is σ = 221679360. Its totient is φ = 189207696.

The previous prime is 205410047. The next prime is 205410053. The reversal of 205410049 is 940014502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205410049 - 2¹ = 205410047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205410043) 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 7 ways as a sum of consecutive naturals, for example, 10267 + ... + 22720.

It is an arithmetic number, because the mean of its divisors is an integer number (27709920).

Almost surely, 2^205410049 is an apocalyptic number.

It is an amenable number.

205410049 is a deficient number, since it is larger than the sum of its proper divisors (16269311).

205410049 is a wasteful number, since it uses less digits than its factorization.

205410049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33479.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 205410049 is about 14332.1334420246. The cubic root of 205410049 is about 590.0297303797.

The spelling of 205410049 in words is "two hundred five million, four hundred ten thousand, forty-nine".