205240298 has 8 divisors (see below), whose sum is σ = 308374500. Its totient is φ = 102448800.

The previous prime is 205240297. The next prime is 205240307. The reversal of 205240298 is 892042502.

It can be written as a sum of positive squares in 2 ways, for example, as 176969809 + 28270489 = 13303^2 + 5317^2 .

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

It is not an unprimeable number, because it can be changed into a prime (205240297) 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, 84173 + ... + 86576.

Almost surely, 2^205240298 is an apocalyptic number.

205240298 is a deficient number, since it is larger than the sum of its proper divisors (103134202).

205240298 is a wasteful number, since it uses less digits than its factorization.

205240298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171352.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 205240298 is about 14326.2101757583. The cubic root of 205240298 is about 589.8671519336.

The spelling of 205240298 in words is "two hundred five million, two hundred forty thousand, two hundred ninety-eight".