233445330 has 48 divisors (see below), whose sum is σ = 607927320. Its totient is φ = 62152704.

The previous prime is 233445319. The next prime is 233445347. The reversal of 233445330 is 33544332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 226171521 + 7273809 = 15039^2 + 2697^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 233445294 and 233445303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67524 + ... + 70896.

Almost surely, 2^233445330 is an apocalyptic number.

233445330 is an abundant number, since it is smaller than the sum of its proper divisors (374481990).

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

233445330 is a wasteful number, since it uses less digits than its factorization.

233445330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155 (or 4152 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

The square root of 233445330 is about 15278.9178281709. The cubic root of 233445330 is about 615.7367335825.

Adding to 233445330 its reverse (33544332), we get a palindrome (266989662).

The spelling of 233445330 in words is "two hundred thirty-three million, four hundred forty-five thousand, three hundred thirty".