205089448 has 8 divisors (see below), whose sum is σ = 384542730. Its totient is φ = 102544720.

The previous prime is 205089433. The next prime is 205089449. The reversal of 205089448 is 844980502.

It can be written as a sum of positive squares in only one way, i.e., 203404644 + 1684804 = 14262^2 + 1298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 205089448.

It is not an unprimeable number, because it can be changed into a prime (205089449) by changing a digit.

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 as a sum of consecutive naturals, namely, 12818083 + ... + 12818098.

Almost surely, 2^205089448 is an apocalyptic number.

It is an amenable number.

205089448 is a deficient number, since it is larger than the sum of its proper divisors (179453282).

205089448 is a wasteful number, since it uses less digits than its factorization.

205089448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25636187 (or 25636183 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 205089448 is about 14320.9443822675. The cubic root of 205089448 is about 589.7226006120.

The spelling of 205089448 in words is "two hundred five million, eighty-nine thousand, four hundred forty-eight".