4421890289 has 2 divisors, whose sum is σ = 4421890290. Its totient is φ = 4421890288.

The previous prime is 4421890261. The next prime is 4421890307. The reversal of 4421890289 is 9820981244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3023130289 + 1398760000 = 54983^2 + 37400^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421890289 - 2²⁰ = 4420841713 is a prime.

It is a super-2 number, since 2×4421890289² = 39106227455905007042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4421890489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210945144 + 2210945145.

It is an arithmetic number, because the mean of its divisors is an integer number (2210945145).

Almost surely, 2^4421890289 is an apocalyptic number.

It is an amenable number.

4421890289 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421890289 is an equidigital number, since it uses as much as digits as its factorization.

4421890289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 4421890289 is about 66497.2953510141. The cubic root of 4421890289 is about 1641.3554985398.

The spelling of 4421890289 in words is "four billion, four hundred twenty-one million, eight hundred ninety thousand, two hundred eighty-nine".