204389886 has 16 divisors (see below), whose sum is σ = 408933504. Its totient is φ = 68104344.

The previous prime is 204389881. The next prime is 204389893. The reversal of 204389886 is 688983402.

It is a happy number.

204389886 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204389881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18081 + ... + 27123.

It is an arithmetic number, because the mean of its divisors is an integer number (25558344).

Almost surely, 2^204389886 is an apocalyptic number.

204389886 is an abundant number, since it is smaller than the sum of its proper divisors (204543618).

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

204389886 is a wasteful number, since it uses less digits than its factorization.

204389886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12815.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 204389886 is about 14296.4990819431. The cubic root of 204389886 is about 589.0513203736.

The spelling of 204389886 in words is "two hundred four million, three hundred eighty-nine thousand, eight hundred eighty-six".