205006604 has 48 divisors (see below), whose sum is σ = 421285536. Its totient is φ = 86246400.

The previous prime is 205006583. The next prime is 205006631. The reversal of 205006604 is 406600502.

It is a super-2 number, since 2×205006604² = 84055415367225632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205006604.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43382 + ... + 47874.

It is an arithmetic number, because the mean of its divisors is an integer number (8776782).

Almost surely, 2^205006604 is an apocalyptic number.

It is an amenable number.

205006604 is an abundant number, since it is smaller than the sum of its proper divisors (216278932).

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

205006604 is a wasteful number, since it uses less digits than its factorization.

205006604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586 (or 4584 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 205006604 is about 14318.0516831027. The cubic root of 205006604 is about 589.6431855742.

The spelling of 205006604 in words is "two hundred five million, six thousand, six hundred four".