205404324 has 24 divisors (see below), whose sum is σ = 487135488. Its totient is φ = 67345440.

The previous prime is 205404317. The next prime is 205404341. The reversal of 205404324 is 423404502.

It is a junction number, because it is equal to n+sod(n) for n = 205404294 and 205404303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139572 + ... + 141035.

It is an arithmetic number, because the mean of its divisors is an integer number (20297312).

Almost surely, 2^205404324 is an apocalyptic number.

It is an amenable number.

205404324 is an abundant number, since it is smaller than the sum of its proper divisors (281731164).

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

205404324 is a wasteful number, since it uses less digits than its factorization.

205404324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280675 (or 280673 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 205404324 is about 14331.9337146109. The cubic root of 205404324 is about 590.0242487400.

Adding to 205404324 its reverse (423404502), we get a palindrome (628808826).

The spelling of 205404324 in words is "two hundred five million, four hundred four thousand, three hundred twenty-four".