205155344 has 20 divisors (see below), whose sum is σ = 397712640. Its totient is φ = 102519840.

The previous prime is 205155311. The next prime is 205155373. The reversal of 205155344 is 443551502.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47849 + ... + 51959.

It is an arithmetic number, because the mean of its divisors is an integer number (19885632).

Almost surely, 2^205155344 is an apocalyptic number.

It is an amenable number.

205155344 is a deficient number, since it is larger than the sum of its proper divisors (192557296).

205155344 is a wasteful number, since it uses less digits than its factorization.

205155344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238 (or 7232 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 205155344 is about 14323.2448837545. The cubic root of 205155344 is about 589.7857538680.

The spelling of 205155344 in words is "two hundred five million, one hundred fifty-five thousand, three hundred forty-four".