233224421 has 4 divisors (see below), whose sum is σ = 236509344. Its totient is φ = 229939500.

The previous prime is 233224417. The next prime is 233224427. The reversal of 233224421 is 124422332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 233224421 - 2² = 233224417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233224427) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1642355 + ... + 1642496.

It is an arithmetic number, because the mean of its divisors is an integer number (59127336).

Almost surely, 2^233224421 is an apocalyptic number.

It is an amenable number.

233224421 is a deficient number, since it is larger than the sum of its proper divisors (3284923).

233224421 is an equidigital number, since it uses as much as digits as its factorization.

233224421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284922.

The product of its digits is 2304, while the sum is 23.

The square root of 233224421 is about 15271.6869074769. The cubic root of 233224421 is about 615.5424486731.

Adding to 233224421 its reverse (124422332), we get a palindrome (357646753).

The spelling of 233224421 in words is "two hundred thirty-three million, two hundred twenty-four thousand, four hundred twenty-one".