205049992 has 32 divisors (see below), whose sum is σ = 445420800. Its totient is φ = 86673024.

The previous prime is 205049987. The next prime is 205050017. The reversal of 205049992 is 299940502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20992 + ... + 29167.

It is an arithmetic number, because the mean of its divisors is an integer number (13919400).

Almost surely, 2^205049992 is an apocalyptic number.

It is an amenable number.

205049992 is an abundant number, since it is smaller than the sum of its proper divisors (240370808).

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

205049992 is a wasteful number, since it uses less digits than its factorization.

205049992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50245 (or 50241 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 205049992 is about 14319.5667532227. The cubic root of 205049992 is about 589.6847803870.

The spelling of 205049992 in words is "two hundred five million, forty-nine thousand, nine hundred ninety-two".