1316388 has 24 divisors (see below), whose sum is σ = 3095008. Its totient is φ = 435456.

The previous prime is 1316363. The next prime is 1316389. The reversal of 1316388 is 8836131.

It is not an unprimeable number, because it can be changed into a prime (1316389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620 + ... + 2292.

2^1316388 is an apocalyptic number.

It is an amenable number.

1316388 is an abundant number, since it is smaller than the sum of its proper divisors (1778620).

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

1316388 is a wasteful number, since it uses less digits than its factorization.

1316388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1316388 is about 1147.3395312635. The cubic root of 1316388 is about 109.5959834783.

The spelling of 1316388 in words is "one million, three hundred sixteen thousand, three hundred eighty-eight".