205990411 has 16 divisors (see below), whose sum is σ = 240628320. Its totient is φ = 174254080.

The previous prime is 205990403. The next prime is 205990453. The reversal of 205990411 is 114099502.

It is not a de Polignac number, because 205990411 - 2³ = 205990403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205990471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10455 + ... + 22831.

It is an arithmetic number, because the mean of its divisors is an integer number (15039270).

Almost surely, 2^205990411 is an apocalyptic number.

205990411 is a deficient number, since it is larger than the sum of its proper divisors (34637909).

205990411 is a wasteful number, since it uses less digits than its factorization.

205990411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12494.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 205990411 is about 14352.3660418762. The cubic root of 205990411 is about 590.5848944558.

The spelling of 205990411 in words is "two hundred five million, nine hundred ninety thousand, four hundred eleven".