1326987168 has 96 divisors (see below), whose sum is σ = 3813005952. Its totient is φ = 401587200.

The previous prime is 1326987161. The next prime is 1326987199. The reversal of 1326987168 is 8617896231.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 1326987168.

It is not an unprimeable number, because it can be changed into a prime (1326987161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67413 + ... + 84843.

It is an arithmetic number, because the mean of its divisors is an integer number (39718812).

Almost surely, 2^1326987168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326987168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1906502976).

1326987168 is an abundant number, since it is smaller than the sum of its proper divisors (2486018784).

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

1326987168 is a wasteful number, since it uses less digits than its factorization.

1326987168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17518 (or 17510 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 1326987168 is about 36427.8350715493. The cubic root of 1326987168 is about 1098.8934238207.

The spelling of 1326987168 in words is "one billion, three hundred twenty-six million, nine hundred eighty-seven thousand, one hundred sixty-eight".