1440412244 has 12 divisors (see below), whose sum is σ = 2668999284. Its totient is φ = 677841024.

The previous prime is 1440412231. The next prime is 1440412247. The reversal of 1440412244 is 4422140441.

It can be written as a sum of positive squares in 2 ways, for example, as 754600900 + 685811344 = 27470^2 + 26188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440412247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10591199 + ... + 10591334.

It is an arithmetic number, because the mean of its divisors is an integer number (222416607).

Almost surely, 2^1440412244 is an apocalyptic number.

It is an amenable number.

1440412244 is a deficient number, since it is larger than the sum of its proper divisors (1228587040).

1440412244 is a wasteful number, since it uses less digits than its factorization.

1440412244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21182554 (or 21182552 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 1440412244 is about 37952.7633249544. The cubic root of 1440412244 is about 1129.3509845025.

Adding to 1440412244 its reverse (4422140441), we get a palindrome (5862552685).

The spelling of 1440412244 in words is "one billion, four hundred forty million, four hundred twelve thousand, two hundred forty-four".