1244203412 has 24 divisors (see below), whose sum is σ = 2318195880. Its totient is φ = 582266880.

The previous prime is 1244203399. The next prime is 1244203421. The reversal of 1244203412 is 2143024421.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 1243690756 = 716^2 + 35266^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38237 + ... + 62852.

It is an arithmetic number, because the mean of its divisors is an integer number (96591495).

Almost surely, 2^1244203412 is an apocalyptic number.

It is an amenable number.

1244203412 is a deficient number, since it is larger than the sum of its proper divisors (1073992468).

1244203412 is a wasteful number, since it uses less digits than its factorization.

1244203412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101291 (or 101289 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1244203412 is about 35273.2676683065. The cubic root of 1244203412 is about 1075.5496484639.

Adding to 1244203412 its reverse (2143024421), we get a palindrome (3387227833).

The spelling of 1244203412 in words is "one billion, two hundred forty-four million, two hundred three thousand, four hundred twelve".