205018104 has 16 divisors (see below), whose sum is σ = 512545320. Its totient is φ = 68339360.

The previous prime is 205018103. The next prime is 205018111. The reversal of 205018104 is 401810502.

205018104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205018103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271187 + ... + 4271234.

Almost surely, 2^205018104 is an apocalyptic number.

205018104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205018104 is an abundant number, since it is smaller than the sum of its proper divisors (307527216).

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

205018104 is a wasteful number, since it uses less digits than its factorization.

205018104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8542430 (or 8542426 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 205018104 is about 14318.4532684225. The cubic root of 205018104 is about 589.6542108611.

Adding to 205018104 its reverse (401810502), we get a palindrome (606828606).

The spelling of 205018104 in words is "two hundred five million, eighteen thousand, one hundred four".