1244440338 has 32 divisors (see below), whose sum is σ = 2546159616. Its totient is φ = 405297168.

The previous prime is 1244440333. The next prime is 1244440349. The reversal of 1244440338 is 8330444421.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1244440299 and 1244440308.

It is not an unprimeable number, because it can be changed into a prime (1244440333) 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 15 ways as a sum of consecutive naturals, for example, 177895 + ... + 184757.

It is an arithmetic number, because the mean of its divisors is an integer number (79567488).

Almost surely, 2^1244440338 is an apocalyptic number.

1244440338 is an abundant number, since it is smaller than the sum of its proper divisors (1301719278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244440338 is a wasteful number, since it uses less digits than its factorization.

1244440338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7558.

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 1244440338 is about 35276.6259441007. The cubic root of 1244440338 is about 1075.6179142314.

Adding to 1244440338 its reverse (8330444421), we get a palindrome (9574884759).

The spelling of 1244440338 in words is "one billion, two hundred forty-four million, four hundred forty thousand, three hundred thirty-eight".