1316394128 has 20 divisors (see below), whose sum is σ = 2914872960. Its totient is φ = 564168864.

The previous prime is 1316394127. The next prime is 1316394151. The reversal of 1316394128 is 8214936131.

It is a junction number, because it is equal to n+sod(n) for n = 1316394091 and 1316394100.

It is not an unprimeable number, because it can be changed into a prime (1316394127) 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, 5876648 + ... + 5876871.

It is an arithmetic number, because the mean of its divisors is an integer number (145743648).

Almost surely, 2^1316394128 is an apocalyptic number.

It is an amenable number.

1316394128 is an abundant number, since it is smaller than the sum of its proper divisors (1598478832).

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

1316394128 is a wasteful number, since it uses less digits than its factorization.

1316394128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11753534 (or 11753528 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 1316394128 is about 36282.1461327745. The cubic root of 1316394128 is about 1095.9615354040.

The spelling of 1316394128 in words is "one billion, three hundred sixteen million, three hundred ninety-four thousand, one hundred twenty-eight".