1318393716 has 12 divisors (see below), whose sum is σ = 3076252032. Its totient is φ = 439464568.

The previous prime is 1318393711. The next prime is 1318393753. The reversal of 1318393716 is 6173938131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318393711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54933060 + ... + 54933083.

It is an arithmetic number, because the mean of its divisors is an integer number (256354336).

Almost surely, 2^1318393716 is an apocalyptic number.

It is an amenable number.

1318393716 is an abundant number, since it is smaller than the sum of its proper divisors (1757858316).

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

1318393716 is a wasteful number, since it uses less digits than its factorization.

1318393716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109866150 (or 109866148 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 1318393716 is about 36309.6917640456. The cubic root of 1318393716 is about 1096.5161724529.

The spelling of 1318393716 in words is "one billion, three hundred eighteen million, three hundred ninety-three thousand, seven hundred sixteen".