205412030 has 8 divisors (see below), whose sum is σ = 369741672. Its totient is φ = 82164808.

The previous prime is 205412029. The next prime is 205412117. The reversal of 205412030 is 30214502.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 10270592 + ... + 10270611.

It is an arithmetic number, because the mean of its divisors is an integer number (46217709).

Almost surely, 2^205412030 is an apocalyptic number.

205412030 is a deficient number, since it is larger than the sum of its proper divisors (164329642).

205412030 is a wasteful number, since it uses less digits than its factorization.

205412030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20541210.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 205412030 is about 14332.2025522946. The cubic root of 205412030 is about 590.0316271469.

Adding to 205412030 its reverse (30214502), we get a palindrome (235626532).

The spelling of 205412030 in words is "two hundred five million, four hundred twelve thousand, thirty".