1244313944 has 8 divisors (see below), whose sum is σ = 2333088660. Its totient is φ = 622156968.

The previous prime is 1244313943. The next prime is 1244313977. The reversal of 1244313944 is 4493134421.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244313943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77769614 + ... + 77769629.

Almost surely, 2^1244313944 is an apocalyptic number.

It is an amenable number.

1244313944 is a deficient number, since it is larger than the sum of its proper divisors (1088774716).

1244313944 is a wasteful number, since it uses less digits than its factorization.

1244313944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155539249 (or 155539245 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 1244313944 is about 35274.8344290941. The cubic root of 1244313944 is about 1075.5814972576.

The spelling of 1244313944 in words is "one billion, two hundred forty-four million, three hundred thirteen thousand, nine hundred forty-four".