43424442433 has 2 divisors, whose sum is σ = 43424442434. Its totient is φ = 43424442432.

The previous prime is 43424442431. The next prime is 43424442461. The reversal of 43424442433 is 33424442434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29180497329 + 14243945104 = 170823^2 + 119348^2 .

It is a cyclic number.

It is not a de Polignac number, because 43424442433 - 2¹ = 43424442431 is a prime.

Together with 43424442431, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 43424442392 and 43424442401.

It is not a weakly prime, because it can be changed into another prime (43424442431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712221216 + 21712221217.

It is an arithmetic number, because the mean of its divisors is an integer number (21712221217).

Almost surely, 2^43424442433 is an apocalyptic number.

It is an amenable number.

43424442433 is a deficient number, since it is larger than the sum of its proper divisors (1).

43424442433 is an equidigital number, since it uses as much as digits as its factorization.

43424442433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 37.

Adding to 43424442433 its reverse (33424442434), we get a palindrome (76848884867).

Subtracting from 43424442433 its reverse (33424442434), we obtain a palindrome (9999999999).

The spelling of 43424442433 in words is "forty-three billion, four hundred twenty-four million, four hundred forty-two thousand, four hundred thirty-three".