205254030 has 16 divisors (see below), whose sum is σ = 492609744. Its totient is φ = 54734400.

The previous prime is 205254019. The next prime is 205254043. The reversal of 205254030 is 30452502.

It is a junction number, because it is equal to n+sod(n) for n = 205253988 and 205254006.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3420871 + ... + 3420930.

It is an arithmetic number, because the mean of its divisors is an integer number (30788109).

Almost surely, 2^205254030 is an apocalyptic number.

205254030 is an abundant number, since it is smaller than the sum of its proper divisors (287355714).

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

205254030 is a wasteful number, since it uses less digits than its factorization.

205254030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841811.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 205254030 is about 14326.6894291738. The cubic root of 205254030 is about 589.8803070420.

The spelling of 205254030 in words is "two hundred five million, two hundred fifty-four thousand, thirty".