205615460 has 12 divisors (see below), whose sum is σ = 431792508. Its totient is φ = 82246176.

The previous prime is 205615453. The next prime is 205615463. The reversal of 205615460 is 64516502.

205615460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 94439524 + 111175936 = 9718^2 + 10544^2 .

It is not an unprimeable number, because it can be changed into a prime (205615463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5140367 + ... + 5140406.

It is an arithmetic number, because the mean of its divisors is an integer number (35982709).

Almost surely, 2^205615460 is an apocalyptic number.

205615460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205615460 is an abundant number, since it is smaller than the sum of its proper divisors (226177048).

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

205615460 is a wasteful number, since it uses less digits than its factorization.

205615460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280782 (or 10280780 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 205615460 is about 14339.2977512848. The cubic root of 205615460 is about 590.2263423440.

The spelling of 205615460 in words is "two hundred five million, six hundred fifteen thousand, four hundred sixty".