205034466 has 128 divisors (see below), whose sum is σ = 545771520. Its totient is φ = 49851648.

The previous prime is 205034441. The next prime is 205034471. The reversal of 205034466 is 664430502.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 363901 + ... + 364463.

It is an arithmetic number, because the mean of its divisors is an integer number (4263840).

Almost surely, 2^205034466 is an apocalyptic number.

205034466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 205034466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272885760).

205034466 is an abundant number, since it is smaller than the sum of its proper divisors (340737054).

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

205034466 is a wasteful number, since it uses less digits than its factorization.

205034466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 205034466 is about 14319.0246176197. The cubic root of 205034466 is about 589.6698967369.

Adding to 205034466 its reverse (664430502), we get a palindrome (869464968).

The spelling of 205034466 in words is "two hundred five million, thirty-four thousand, four hundred sixty-six".