205665448 has 32 divisors (see below), whose sum is σ = 416275200. Its totient is φ = 94967488.

The previous prime is 205665437. The next prime is 205665461. The reversal of 205665448 is 844566502.

It is a self number, because there is not a number n which added to its sum of digits gives 205665448.

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, 13936 + ... + 24607.

It is an arithmetic number, because the mean of its divisors is an integer number (13008600).

Almost surely, 2^205665448 is an apocalyptic number.

It is an amenable number.

205665448 is an abundant number, since it is smaller than the sum of its proper divisors (210609752).

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

205665448 is a wasteful number, since it uses less digits than its factorization.

205665448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38601 (or 38597 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 205665448 is about 14341.0406874815. The cubic root of 205665448 is about 590.2741692336.

The spelling of 205665448 in words is "two hundred five million, six hundred sixty-five thousand, four hundred forty-eight".