205100430 has 32 divisors (see below), whose sum is σ = 513644544. Its totient is φ = 52315296.

The previous prime is 205100429. The next prime is 205100471. The reversal of 205100430 is 34001502.

205100430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147934 + ... + 149313.

It is an arithmetic number, because the mean of its divisors is an integer number (16051392).

Almost surely, 2^205100430 is an apocalyptic number.

205100430 is an abundant number, since it is smaller than the sum of its proper divisors (308544114).

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

205100430 is a wasteful number, since it uses less digits than its factorization.

205100430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297280.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 205100430 is about 14321.3278015692. The cubic root of 205100430 is about 589.7331264550.

Adding to 205100430 its reverse (34001502), we get a palindrome (239101932).

The spelling of 205100430 in words is "two hundred five million, one hundred thousand, four hundred thirty".