233530530 has 32 divisors (see below), whose sum is σ = 593443584. Its totient is φ = 58611456.

The previous prime is 233530511. The next prime is 233530537. The reversal of 233530530 is 35035332.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 233530530.

It is not an unprimeable number, because it can be changed into a prime (233530537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228442 + ... + 229461.

It is an arithmetic number, because the mean of its divisors is an integer number (18545112).

Almost surely, 2^233530530 is an apocalyptic number.

233530530 is an abundant number, since it is smaller than the sum of its proper divisors (359913054).

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

233530530 is a wasteful number, since it uses less digits than its factorization.

233530530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457930.

The product of its (nonzero) digits is 4050, while the sum is 24.

The square root of 233530530 is about 15281.7057294008. The cubic root of 233530530 is about 615.8116324733.

Adding to 233530530 its reverse (35035332), we get a palindrome (268565862).

The spelling of 233530530 in words is "two hundred thirty-three million, five hundred thirty thousand, five hundred thirty".