1244439 has 12 divisors (see below), whose sum is σ = 2054416. Its totient is φ = 711072.

The previous prime is 1244437. The next prime is 1244447. The reversal of 1244439 is 9344421.

It is not a de Polignac number, because 1244439 - 2¹ = 1244437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244437) 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 in 11 ways as a sum of consecutive naturals, for example, 9814 + ... + 9939.

2^1244439 is an apocalyptic number.

1244439 is a deficient number, since it is larger than the sum of its proper divisors (809977).

1244439 is a wasteful number, since it uses less digits than its factorization.

1244439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19766 (or 19763 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1244439 is about 1115.5442617844. The cubic root of 1244439 is about 107.5617528736.

The spelling of 1244439 in words is "one million, two hundred forty-four thousand, four hundred thirty-nine".