205331340 has 24 divisors (see below), whose sum is σ = 574927920. Its totient is φ = 54755008.

The previous prime is 205331323. The next prime is 205331377. The reversal of 205331340 is 43133502.

205331340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1711035 + ... + 1711154.

It is an arithmetic number, because the mean of its divisors is an integer number (23955330).

Almost surely, 2^205331340 is an apocalyptic number.

205331340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205331340 is an abundant number, since it is smaller than the sum of its proper divisors (369596580).

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

205331340 is a wasteful number, since it uses less digits than its factorization.

205331340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422201 (or 3422199 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 205331340 is about 14329.3872862729. The cubic root of 205331340 is about 589.9543582427.

Adding to 205331340 its reverse (43133502), we get a palindrome (248464842).

The spelling of 205331340 in words is "two hundred five million, three hundred thirty-one thousand, three hundred forty".