233130320 has 20 divisors (see below), whose sum is σ = 542028180. Its totient is φ = 93252096.

The previous prime is 233130269. The next prime is 233130329. The reversal of 233130320 is 23031332.

It can be written as a sum of positive squares in 2 ways, for example, as 81938704 + 151191616 = 9052^2 + 12296^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×233130320² = 108699492206604800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233130329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1456985 + ... + 1457144.

It is an arithmetic number, because the mean of its divisors is an integer number (27101409).

Almost surely, 2^233130320 is an apocalyptic number.

233130320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233130320 is an abundant number, since it is smaller than the sum of its proper divisors (308897860).

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

233130320 is a wasteful number, since it uses less digits than its factorization.

233130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914142 (or 2914136 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 233130320 is about 15268.6056992772. The cubic root of 233130320 is about 615.4596515233.

Adding to 233130320 its reverse (23031332), we get a palindrome (256161652).

The spelling of 233130320 in words is "two hundred thirty-three million, one hundred thirty thousand, three hundred twenty".