2002444889 has 2 divisors, whose sum is σ = 2002444890. Its totient is φ = 2002444888.

The previous prime is 2002444849. The next prime is 2002444933. The reversal of 2002444889 is 9884442002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1178754889 + 823690000 = 34333^2 + 28700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002444889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002444849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001222444 + 1001222445.

It is an arithmetic number, because the mean of its divisors is an integer number (1001222445).

Almost surely, 2^2002444889 is an apocalyptic number.

It is an amenable number.

2002444889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002444889 is an equidigital number, since it uses as much as digits as its factorization.

2002444889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 2002444889 is about 44748.6858913198. The cubic root of 2002444889 is about 1260.4342353574.

The spelling of 2002444889 in words is "two billion, two million, four hundred forty-four thousand, eight hundred eighty-nine".