4421020169 has 2 divisors, whose sum is σ = 4421020170. Its totient is φ = 4421020168.

The previous prime is 4421020157. The next prime is 4421020193. The reversal of 4421020169 is 9610201244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4420654144 + 366025 = 66488^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421020169 - 2¹⁶ = 4420954633 is a prime.

It is a super-2 number, since 2×4421020169² = 39090838669409577122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4421020139) 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, 2210510084 + 2210510085.

It is an arithmetic number, because the mean of its divisors is an integer number (2210510085).

Almost surely, 2^4421020169 is an apocalyptic number.

It is an amenable number.

4421020169 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421020169 is an equidigital number, since it uses as much as digits as its factorization.

4421020169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4421020169 is about 66490.7525073976. The cubic root of 4421020169 is about 1641.2478319206.

The spelling of 4421020169 in words is "four billion, four hundred twenty-one million, twenty thousand, one hundred sixty-nine".