1316396980 has 12 divisors (see below), whose sum is σ = 2764433700. Its totient is φ = 526558784.

The previous prime is 1316396951. The next prime is 1316396993. The reversal of 1316396980 is 896936131.

It can be written as a sum of positive squares in 2 ways, for example, as 477947044 + 838449936 = 21862^2 + 28956^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1316396980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32909905 + ... + 32909944.

It is an arithmetic number, because the mean of its divisors is an integer number (230369475).

Almost surely, 2^1316396980 is an apocalyptic number.

1316396980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316396980 is an abundant number, since it is smaller than the sum of its proper divisors (1448036720).

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

1316396980 is a wasteful number, since it uses less digits than its factorization.

1316396980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65819858 (or 65819856 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 1316396980 is about 36282.1854358306. The cubic root of 1316396980 is about 1095.9623268792.

The spelling of 1316396980 in words is "one billion, three hundred sixteen million, three hundred ninety-six thousand, nine hundred eighty".