244481689 has 2 divisors, whose sum is σ = 244481690. Its totient is φ = 244481688.

The previous prime is 244481623. The next prime is 244481693. The reversal of 244481689 is 986184442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182466064 + 62015625 = 13508^2 + 7875^2 .

It is a cyclic number.

It is not a de Polignac number, because 244481689 - 2⁷ = 244481561 is a prime.

It is not a weakly prime, because it can be changed into another prime (244481609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122240844 + 122240845.

It is an arithmetic number, because the mean of its divisors is an integer number (122240845).

Almost surely, 2^244481689 is an apocalyptic number.

It is an amenable number.

244481689 is a deficient number, since it is larger than the sum of its proper divisors (1).

244481689 is an equidigital number, since it uses as much as digits as its factorization.

244481689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 46.

The square root of 244481689 is about 15635.9102389340. The cubic root of 244481689 is about 625.2909058570.

The spelling of 244481689 in words is "two hundred forty-four million, four hundred eighty-one thousand, six hundred eighty-nine".