43424233 has 2 divisors, whose sum is σ = 43424234. Its totient is φ = 43424232.

The previous prime is 43424231. The next prime is 43424237. The reversal of 43424233 is 33242434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36517849 + 6906384 = 6043^2 + 2628^2 .

It is a cyclic number.

It is not a de Polignac number, because 43424233 - 2¹ = 43424231 is a prime.

Together with 43424231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 43424198 and 43424207.

It is not a weakly prime, because it can be changed into another prime (43424231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712116 + 21712117.

It is an arithmetic number, because the mean of its divisors is an integer number (21712117).

Almost surely, 2^43424233 is an apocalyptic number.

It is an amenable number.

43424233 is a deficient number, since it is larger than the sum of its proper divisors (1).

43424233 is an equidigital number, since it uses as much as digits as its factorization.

43424233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 25.

The square root of 43424233 is about 6589.7065943788. The cubic root of 43424233 is about 351.4881749828.

Adding to 43424233 its reverse (33242434), we get a palindrome (76666667).

The spelling of 43424233 in words is "forty-three million, four hundred twenty-four thousand, two hundred thirty-three".