2442399989 has 2 divisors, whose sum is σ = 2442399990. Its totient is φ = 2442399988.

The previous prime is 2442399961. The next prime is 2442400003. The reversal of 2442399989 is 9899932442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1343808964 + 1098591025 = 36658^2 + 33145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2442399989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2442399919) 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, 1221199994 + 1221199995.

It is an arithmetic number, because the mean of its divisors is an integer number (1221199995).

Almost surely, 2^2442399989 is an apocalyptic number.

It is an amenable number.

2442399989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2442399989 is an equidigital number, since it uses as much as digits as its factorization.

2442399989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 59.

The square root of 2442399989 is about 49420.6433487060. The cubic root of 2442399989 is about 1346.7043505273.

The spelling of 2442399989 in words is "two billion, four hundred forty-two million, three hundred ninety-nine thousand, nine hundred eighty-nine".