4421402191 has 2 divisors, whose sum is σ = 4421402192. Its totient is φ = 4421402190.

The previous prime is 4421402179. The next prime is 4421402231. The reversal of 4421402191 is 1912041244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4421402191 - 2¹⁵ = 4421369423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4421402131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210701095 + 2210701096.

It is an arithmetic number, because the mean of its divisors is an integer number (2210701096).

Almost surely, 2^4421402191 is an apocalyptic number.

4421402191 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421402191 is an equidigital number, since it uses as much as digits as its factorization.

4421402191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4421402191 is about 66493.6251906903. The cubic root of 4421402191 is about 1641.2951041713.

The spelling of 4421402191 in words is "four billion, four hundred twenty-one million, four hundred two thousand, one hundred ninety-one".