205856396 has 6 divisors (see below), whose sum is σ = 360248700. Its totient is φ = 102928196.

The previous prime is 205856353. The next prime is 205856401. The reversal of 205856396 is 693658502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25732046 + ... + 25732053.

It is an arithmetic number, because the mean of its divisors is an integer number (60041450).

Almost surely, 2^205856396 is an apocalyptic number.

It is an amenable number.

205856396 is a deficient number, since it is larger than the sum of its proper divisors (154392304).

205856396 is a wasteful number, since it uses less digits than its factorization.

205856396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51464103 (or 51464101 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 205856396 is about 14347.6965398631. The cubic root of 205856396 is about 590.4567907502.

The spelling of 205856396 in words is "two hundred five million, eight hundred fifty-six thousand, three hundred ninety-six".