2002444091 has 2 divisors, whose sum is σ = 2002444092. Its totient is φ = 2002444090.

The previous prime is 2002444049. The next prime is 2002444099. The reversal of 2002444091 is 1904442002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002444091 - 2³⁰ = 928702267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002444091.

It is not a weakly prime, because it can be changed into another prime (2002444099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001222045 + 1001222046.

It is an arithmetic number, because the mean of its divisors is an integer number (1001222046).

Almost surely, 2^2002444091 is an apocalyptic number.

2002444091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002444091 is an equidigital number, since it uses as much as digits as its factorization.

2002444091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2002444091 is about 44748.6769748559. The cubic root of 2002444091 is about 1260.4340679243.

Adding to 2002444091 its reverse (1904442002), we get a palindrome (3906886093).

The spelling of 2002444091 in words is "two billion, two million, four hundred forty-four thousand, ninety-one".