205771370 has 16 divisors (see below), whose sum is σ = 423301248. Its totient is φ = 70550160.

The previous prime is 205771339. The next prime is 205771403. The reversal of 205771370 is 73177502.

205771370 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 1469726 + ... + 1469865.

It is an arithmetic number, because the mean of its divisors is an integer number (26456328).

Almost surely, 2^205771370 is an apocalyptic number.

205771370 is an abundant number, since it is smaller than the sum of its proper divisors (217529878).

205771370 is a wasteful number, since it uses less digits than its factorization.

205771370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939605.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 205771370 is about 14344.7331798120. The cubic root of 205771370 is about 590.3754863495.

The spelling of 205771370 in words is "two hundred five million, seven hundred seventy-one thousand, three hundred seventy".