205498830 has 32 divisors (see below), whose sum is σ = 493590528. Its totient is φ = 54756000.

The previous prime is 205498819. The next prime is 205498837. The reversal of 205498830 is 38894502.

It is a happy number.

205498830 is digitally balanced in base 3, 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 (205498837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56775 + ... + 60285.

It is an arithmetic number, because the mean of its divisors is an integer number (15424704).

Almost surely, 2^205498830 is an apocalyptic number.

205498830 is an abundant number, since it is smaller than the sum of its proper divisors (288091698).

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

205498830 is a wasteful number, since it uses less digits than its factorization.

205498830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 205498830 is about 14335.2303783371. The cubic root of 205498830 is about 590.1147244109.

The spelling of 205498830 in words is "two hundred five million, four hundred ninety-eight thousand, eight hundred thirty".