205042388 has 24 divisors (see below), whose sum is σ = 369919872. Its totient is φ = 99392384.

The previous prime is 205042381. The next prime is 205042393. The reversal of 205042388 is 883240502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205042381) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15020 + ... + 25212.

It is an arithmetic number, because the mean of its divisors is an integer number (15413328).

Almost surely, 2^205042388 is an apocalyptic number.

It is an amenable number.

205042388 is a deficient number, since it is larger than the sum of its proper divisors (164877484).

205042388 is a wasteful number, since it uses less digits than its factorization.

205042388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10351 (or 10349 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 205042388 is about 14319.3012399349. The cubic root of 205042388 is about 589.6774910776.

The spelling of 205042388 in words is "two hundred five million, forty-two thousand, three hundred eighty-eight".