205315484 has 12 divisors (see below), whose sum is σ = 391966008. Its totient is φ = 93325200.

The previous prime is 205315469. The next prime is 205315489. The reversal of 205315484 is 484513502.

It is a self number, because there is not a number n which added to its sum of digits gives 205315484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205315489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333087 + ... + 2333174.

It is an arithmetic number, because the mean of its divisors is an integer number (32663834).

Almost surely, 2^205315484 is an apocalyptic number.

It is an amenable number.

205315484 is a deficient number, since it is larger than the sum of its proper divisors (186650524).

205315484 is a wasteful number, since it uses less digits than its factorization.

205315484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666276 (or 4666274 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 205315484 is about 14328.8340069944. The cubic root of 205315484 is about 589.9391721260.

Adding to 205315484 its reverse (484513502), we get a palindrome (689828986).

The spelling of 205315484 in words is "two hundred five million, three hundred fifteen thousand, four hundred eighty-four".