1326316080 has 80 divisors (see below), whose sum is σ = 4207230720. Its totient is φ = 345456384.

The previous prime is 1326316063. The next prime is 1326316087. The reversal of 1326316080 is 806136231.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1326316080² = 3518228688133132800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1326316087) 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, 53940 + ... + 74579.

It is an arithmetic number, because the mean of its divisors is an integer number (52590384).

Almost surely, 2^1326316080 is an apocalyptic number.

1326316080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326316080 is an abundant number, since it is smaller than the sum of its proper divisors (2880914640).

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

1326316080 is a wasteful number, since it uses less digits than its factorization.

1326316080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128578 (or 128572 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1326316080 is about 36418.6227087187. The cubic root of 1326316080 is about 1098.7081473391.

The spelling of 1326316080 in words is "one billion, three hundred twenty-six million, three hundred sixteen thousand, eighty".