244426689 has 12 divisors (see below), whose sum is σ = 380219476. Its totient is φ = 150416352.

The previous prime is 244426669. The next prime is 244426691. The reversal of 244426689 is 986624442.

244426689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139712400 + 104714289 = 11820^2 + 10233^2 .

It is not a de Polignac number, because 244426689 - 2⁹ = 244426177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (244426669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1044442 + ... + 1044675.

Almost surely, 2^244426689 is an apocalyptic number.

It is an amenable number.

244426689 is a deficient number, since it is larger than the sum of its proper divisors (135792787).

244426689 is a wasteful number, since it uses less digits than its factorization.

244426689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089136 (or 2089133 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 244426689 is about 15634.1513680788. The cubic root of 244426689 is about 625.2440126668.

The spelling of 244426689 in words is "two hundred forty-four million, four hundred twenty-six thousand, six hundred eighty-nine".