42433333 has 2 divisors, whose sum is σ = 42433334. Its totient is φ = 42433332.

The previous prime is 42433297. The next prime is 42433357. The reversal of 42433333 is 33333424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38962564 + 3470769 = 6242^2 + 1863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42433333 is a prime.

42433333 is a modest number, since divided by 33333 gives 424 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 42433298 and 42433307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42436333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21216666 + 21216667.

It is an arithmetic number, because the mean of its divisors is an integer number (21216667).

Almost surely, 2^42433333 is an apocalyptic number.

It is an amenable number.

42433333 is a deficient number, since it is larger than the sum of its proper divisors (1).

42433333 is an equidigital number, since it uses as much as digits as its factorization.

42433333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 25.

The square root of 42433333 is about 6514.0872729800. The cubic root of 42433333 is about 348.7940345129.

Adding to 42433333 its reverse (33333424), we get a palindrome (75766757).

Subtracting from 42433333 its reverse (33333424), we obtain a palindrome (9099909).

The spelling of 42433333 in words is "forty-two million, four hundred thirty-three thousand, three hundred thirty-three".