205133934 has 48 divisors (see below), whose sum is σ = 438410736. Its totient is φ = 63974400.

The previous prime is 205133893. The next prime is 205133977. The reversal of 205133934 is 439331502.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 487044 + ... + 487464.

It is an arithmetic number, because the mean of its divisors is an integer number (9133557).

Almost surely, 2^205133934 is an apocalyptic number.

205133934 is an abundant number, since it is smaller than the sum of its proper divisors (233276802).

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

205133934 is a wasteful number, since it uses less digits than its factorization.

205133934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 205133934 is about 14322.4974777446. The cubic root of 205133934 is about 589.7652364850.

The spelling of 205133934 in words is "two hundred five million, one hundred thirty-three thousand, nine hundred thirty-four".