4434420643 has 2 divisors, whose sum is σ = 4434420644. Its totient is φ = 4434420642.

The previous prime is 4434420619. The next prime is 4434420647. The reversal of 4434420643 is 3460244344.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4434420643 - 2⁵ = 4434420611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4434420599 and 4434420608.

It is not a weakly prime, because it can be changed into another prime (4434420647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2217210321 + 2217210322.

It is an arithmetic number, because the mean of its divisors is an integer number (2217210322).

Almost surely, 2^4434420643 is an apocalyptic number.

4434420643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4434420643 is an equidigital number, since it uses as much as digits as its factorization.

4434420643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 34.

The square root of 4434420643 is about 66591.4457194015. The cubic root of 4434420643 is about 1642.9044114760.

Adding to 4434420643 its reverse (3460244344), we get a palindrome (7894664987).

The spelling of 4434420643 in words is "four billion, four hundred thirty-four million, four hundred twenty thousand, six hundred forty-three".