1316808 has 24 divisors (see below), whose sum is σ = 3566550. Its totient is φ = 438912.

The previous prime is 1316801. The next prime is 1316813. The reversal of 1316808 is 8086131.

It can be written as a sum of positive squares in only one way, i.e., 736164 + 580644 = 858^2 + 762^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (1316801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9073 + ... + 9216.

2^1316808 is an apocalyptic number.

1316808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1316808 is an abundant number, since it is smaller than the sum of its proper divisors (2249742).

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

1316808 is a wasteful number, since it uses less digits than its factorization.

1316808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18301 (or 18294 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1316808 is about 1147.5225487981. The cubic root of 1316808 is about 109.6076379496.

The spelling of 1316808 in words is "one million, three hundred sixteen thousand, eight hundred eight".