205320396 has 24 divisors (see below), whose sum is σ = 479739904. Its totient is φ = 68346000.

The previous prime is 205320391. The next prime is 205320397. The reversal of 205320396 is 693023502.

205320396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (205320391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380 + ... + 20403.

Almost surely, 2^205320396 is an apocalyptic number.

It is an amenable number.

205320396 is an abundant number, since it is smaller than the sum of its proper divisors (274419508).

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

205320396 is a wasteful number, since it uses less digits than its factorization.

205320396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23541 (or 23539 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 205320396 is about 14329.0054086109. The cubic root of 205320396 is about 589.9438766877.

Adding to 205320396 its reverse (693023502), we get a palindrome (898343898).

The spelling of 205320396 in words is "two hundred five million, three hundred twenty thousand, three hundred ninety-six".