205738530 has 48 divisors (see below), whose sum is σ = 499262400. Its totient is φ = 54260128.

The previous prime is 205738529. The next prime is 205738549. The reversal of 205738530 is 35837502.

It is a junction number, because it is equal to n+sod(n) for n = 205738491 and 205738500.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343171 + ... + 343769.

It is an arithmetic number, because the mean of its divisors is an integer number (10401300).

Almost surely, 2^205738530 is an apocalyptic number.

205738530 is an abundant number, since it is smaller than the sum of its proper divisors (293523870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205738530 is a wasteful number, since it uses less digits than its factorization.

205738530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 205738530 is about 14343.5884631427. The cubic root of 205738530 is about 590.3440777649.

The spelling of 205738530 in words is "two hundred five million, seven hundred thirty-eight thousand, five hundred thirty".