205395436 has 12 divisors (see below), whose sum is σ = 369156928. Its totient is φ = 99922032.

The previous prime is 205395433. The next prime is 205395503. The reversal of 205395436 is 634593502.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 205395395 and 205395404.

It is not an unprimeable number, because it can be changed into a prime (205395433) 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, 693756 + ... + 694051.

Almost surely, 2^205395436 is an apocalyptic number.

It is an amenable number.

205395436 is a deficient number, since it is larger than the sum of its proper divisors (163761492).

205395436 is a wasteful number, since it uses less digits than its factorization.

205395436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387848 (or 1387846 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 205395436 is about 14331.6236344665. The cubic root of 205395436 is about 590.0157383526.

It can be divided in two parts, 205 and 395436, that added together give a square (395641 = 629²).

The spelling of 205395436 in words is "two hundred five million, three hundred ninety-five thousand, four hundred thirty-six".