4432421243 has 2 divisors, whose sum is σ = 4432421244. Its totient is φ = 4432421242.

The previous prime is 4432421239. The next prime is 4432421263. The reversal of 4432421243 is 3421242344.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4432421243 - 2² = 4432421239 is a prime.

It is not a weakly prime, because it can be changed into another prime (4432421263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2216210621 + 2216210622.

It is an arithmetic number, because the mean of its divisors is an integer number (2216210622).

Almost surely, 2^4432421243 is an apocalyptic number.

4432421243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4432421243 is an equidigital number, since it uses as much as digits as its factorization.

4432421243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 29.

The square root of 4432421243 is about 66576.4315880628. The cubic root of 4432421243 is about 1642.6574557361.

Adding to 4432421243 its reverse (3421242344), we get a palindrome (7853663587).

The spelling of 4432421243 in words is "four billion, four hundred thirty-two million, four hundred twenty-one thousand, two hundred forty-three".