1317328 has 20 divisors (see below), whose sum is σ = 2570148. Its totient is φ = 654080.

The previous prime is 1317319. The next prime is 1317359. The reversal of 1317328 is 8237131.

It can be written as a sum of positive squares in 2 ways, for example, as 1098304 + 219024 = 1048^2 + 468^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4350 + ... + 4642.

2^1317328 is an apocalyptic number.

It is an amenable number.

1317328 is a deficient number, since it is larger than the sum of its proper divisors (1252820).

1317328 is a wasteful number, since it uses less digits than its factorization.

1317328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 576 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 1317328 is about 1147.7491015026. The cubic root of 1317328 is about 109.6220638621.

The spelling of 1317328 in words is "one million, three hundred seventeen thousand, three hundred twenty-eight".