1307944 has 32 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 584320.

The previous prime is 1307927. The next prime is 1307951. The reversal of 1307944 is 4497031.

1307944 = T₃₂ + T₃₃ + ... + T₁₉₈.

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, 7749 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2^1307944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1307944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360800).

1307944 is an abundant number, since it is smaller than the sum of its proper divisors (1413656).

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

1307944 is a wasteful number, since it uses less digits than its factorization.

1307944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1307944 is about 1143.6537937680. The cubic root of 1307944 is about 109.3611453471.

Subtracting from 1307944 its product of nonzero digits (3024), we obtain a triangular number (1304920 = T₁₆₁₅).

The spelling of 1307944 in words is "one million, three hundred seven thousand, nine hundred forty-four".