205042411 has 24 divisors (see below), whose sum is σ = 244411440. Its totient is φ = 171460800.

The previous prime is 205042399. The next prime is 205042429. The reversal of 205042411 is 114240502.

It is not a de Polignac number, because 205042411 - 2⁹ = 205041899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205042451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 540820 + ... + 541198.

It is an arithmetic number, because the mean of its divisors is an integer number (10183810).

Almost surely, 2^205042411 is an apocalyptic number.

205042411 is a deficient number, since it is larger than the sum of its proper divisors (39369029).

205042411 is a wasteful number, since it uses less digits than its factorization.

205042411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 205042411 is about 14319.3020430467. The cubic root of 205042411 is about 589.6775131260.

Adding to 205042411 its reverse (114240502), we get a palindrome (319282913).

The spelling of 205042411 in words is "two hundred five million, forty-two thousand, four hundred eleven".