233205530 has 16 divisors (see below), whose sum is σ = 434245320. Its totient is φ = 90065472.

The previous prime is 233205523. The next prime is 233205547. The reversal of 233205530 is 35502332.

It can be written as a sum of positive squares in 4 ways, for example, as 113018161 + 120187369 = 10631^2 + 10963^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233205496 and 233205505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401789 + ... + 402368.

Almost surely, 2^233205530 is an apocalyptic number.

233205530 is a deficient number, since it is larger than the sum of its proper divisors (201039790).

233205530 is a wasteful number, since it uses less digits than its factorization.

233205530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804193.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 233205530 is about 15271.0683974632. The cubic root of 233205530 is about 615.5258287349.

Adding to 233205530 its reverse (35502332), we get a palindrome (268707862).

The spelling of 233205530 in words is "two hundred thirty-three million, two hundred five thousand, five hundred thirty".