4420081 has 2 divisors, whose sum is σ = 4420082. Its totient is φ = 4420080.

The previous prime is 4420069. The next prime is 4420127. The reversal of 4420081 is 1800244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2958400 + 1461681 = 1720^2 + 1209^2 .

It is a cyclic number.

It is not a de Polignac number, because 4420081 - 2⁵ = 4420049 is a prime.

It is a super-2 number, since 2×4420081² = 39074232093122, which contains 22 as substring.

It is equal to p₃₁₀₆₆₃ and since 4420081 and 310663 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4420001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210040 + 2210041.

It is an arithmetic number, because the mean of its divisors is an integer number (2210041).

Almost surely, 2^4420081 is an apocalyptic number.

It is an amenable number.

4420081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4420081 is an equidigital number, since it uses as much as digits as its factorization.

4420081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4420081 is about 2102.3988679601. The cubic root of 4420081 is about 164.1131605485.

The spelling of 4420081 in words is "four million, four hundred twenty thousand, eighty-one".