205080678 has 24 divisors (see below), whose sum is σ = 484736616. Its totient is φ = 62145600.

The previous prime is 205080671. The next prime is 205080703. The reversal of 205080678 is 876080502.

205080678 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205080671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517683 + ... + 518078.

It is an arithmetic number, because the mean of its divisors is an integer number (20197359).

Almost surely, 2^205080678 is an apocalyptic number.

205080678 is an abundant number, since it is smaller than the sum of its proper divisors (279655938).

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

205080678 is a wasteful number, since it uses less digits than its factorization.

205080678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035780 (or 1035777 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 205080678 is about 14320.6381841034. The cubic root of 205080678 is about 589.7141946197.

It can be divided in two parts, 2050 and 80678, that added together give a palindrome (82728).

The spelling of 205080678 in words is "two hundred five million, eighty thousand, six hundred seventy-eight".