1244749716 has 72 divisors (see below), whose sum is σ = 3719963520. Its totient is φ = 343377216.

The previous prime is 1244749699. The next prime is 1244749721. The reversal of 1244749716 is 6179474421.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77856 + ... + 92471.

It is an arithmetic number, because the mean of its divisors is an integer number (51666160).

Almost surely, 2^1244749716 is an apocalyptic number.

It is an amenable number.

1244749716 is an abundant number, since it is smaller than the sum of its proper divisors (2475213804).

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

1244749716 is a wasteful number, since it uses less digits than its factorization.

1244749716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170373 (or 170368 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 1244749716 is about 35281.0106998085. The cubic root of 1244749716 is about 1075.7070426361.

The spelling of 1244749716 in words is "one billion, two hundred forty-four million, seven hundred forty-nine thousand, seven hundred sixteen".