233221330 has 8 divisors (see below), whose sum is σ = 419798412. Its totient is φ = 93288528.

The previous prime is 233221327. The next prime is 233221343. The reversal of 233221330 is 33122332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 189145009 + 44076321 = 13753^2 + 6639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 233221298 and 233221307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11661057 + ... + 11661076.

Almost surely, 2^233221330 is an apocalyptic number.

233221330 is a deficient number, since it is larger than the sum of its proper divisors (186577082).

233221330 is a wasteful number, since it uses less digits than its factorization.

233221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23322140.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 233221330 is about 15271.5857067955. The cubic root of 233221330 is about 615.5397293322.

Adding to 233221330 its reverse (33122332), we get a palindrome (266343662).

The spelling of 233221330 in words is "two hundred thirty-three million, two hundred twenty-one thousand, three hundred thirty".