1316219808 has 48 divisors (see below), whose sum is σ = 3520280736. Its totient is φ = 430460160.

The previous prime is 1316219803. The next prime is 1316219831. The reversal of 1316219808 is 8089126131.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1316219803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124258 + ... + 134433.

It is an arithmetic number, because the mean of its divisors is an integer number (73339182).

Almost surely, 2^1316219808 is an apocalyptic number.

It is an amenable number.

1316219808 is an abundant number, since it is smaller than the sum of its proper divisors (2204060928).

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

1316219808 is a wasteful number, since it uses less digits than its factorization.

1316219808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258757 (or 258749 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1316219808 is about 36279.7437697677. The cubic root of 1316219808 is about 1095.9131566688.

The spelling of 1316219808 in words is "one billion, three hundred sixteen million, two hundred nineteen thousand, eight hundred eight".